491257000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 256

約数和(自身を含む): 1358622720

約数和(自身を除く): 867365720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 25, 26, 31, 40, 46, 50, 52, 53, 62, 65, 92, 100, 104, 106, 115, 124, 125, 130, 155, 184, 200, 212, 230, 248, 250, 260, 265, 299, 310, 325, 403, 424, 460, 500, 520, 530, 575, 598, 620, 650, 689, 713, 775, 806, 920, 1000, 1060, 1150, 1196, 1219, 1240, 1300, 1325, 1378, 1426, 1495, 1550, 1612, 1625, 1643, 2015, 2120, 2300, 2392, 2438, 2600, 2650, 2756, 2852, 2875, 2990, 3100, 3224, 3250, 3286, 3445, 3565, 3875, 4030, 4600, 4876, 5300, 5512, 5704, 5750, 5980, 6095, 6200, 6500, 6572, 6625, 6890, 7130, 7475, 7750, 8060, 8215, 9269, 9752, 10075, 10600, 11500, 11960, 12190, 13000, 13144, 13250, 13780, 14260, 14950, 15500, 15847, 16120, 16430, 17225, 17825, 18538, 20150, 21359, 23000, 24380, 26500, 27560, 28520, 29900, 30475, 31000, 31694, 32860, 34450, 35650, 37076, 37375, 37789, 40300, 41075, 42718, 46345, 48760, 50375, 53000, 59800, 60950, 63388, 65720, 68900, 71300, 74152, 74750, 75578, 79235, 80600, 82150, 85436, 86125, 89125, 92690, 100750, 106795, 121900, 126776, 137800, 142600, 149500, 151156, 152375, 158470, 164300, 170872, 172250, 178250, 185380, 188945, 201500, 205375, 213590, 231725, 243800, 299000, 302312, 304750, 316940, 328600, 344500, 356500, 370760, 377890, 396175, 403000, 410750, 427180, 463450, 491257, 533975, 609500, 633880, 689000, 713000, 755780, 792350, 821500, 854360, 926900, 944725, 982514, 1067950, 1158625, 1219000, 1511560, 1584700, 1643000, 1853800, 1889450, 1965028, 1980875, 2135900, 2317250, 2456285, 2669875, 3169400, 3778900, 3930056, 3961750, 4271800, 4634500, 4723625, 4912570, 5339750, 7557800, 7923500, 9269000, 9447250, 9825140, 10679500, 12281425, 15847000, 18894500, 19650280, 21359000, 24562850, 37789000, 49125700, 61407125, 98251400, 122814250, 245628500, 491257000]

約数ペア:

[(1, 491257000), (2, 245628500), (4, 122814250), (5, 98251400), (8, 61407125), (10, 49125700), (13, 37789000), (20, 24562850), (23, 21359000), (25, 19650280), (26, 18894500), (31, 15847000), (40, 12281425), (46, 10679500), (50, 9825140), (52, 9447250), (53, 9269000), (62, 7923500), (65, 7557800), (92, 5339750), (100, 4912570), (104, 4723625), (106, 4634500), (115, 4271800), (124, 3961750), (125, 3930056), (130, 3778900), (155, 3169400), (184, 2669875), (200, 2456285), (212, 2317250), (230, 2135900), (248, 1980875), (250, 1965028), (260, 1889450), (265, 1853800), (299, 1643000), (310, 1584700), (325, 1511560), (403, 1219000), (424, 1158625), (460, 1067950), (500, 982514), (520, 944725), (530, 926900), (575, 854360), (598, 821500), (620, 792350), (650, 755780), (689, 713000), (713, 689000), (775, 633880), (806, 609500), (920, 533975), (1000, 491257), (1060, 463450), (1150, 427180), (1196, 410750), (1219, 403000), (1240, 396175), (1300, 377890), (1325, 370760), (1378, 356500), (1426, 344500), (1495, 328600), (1550, 316940), (1612, 304750), (1625, 302312), (1643, 299000), (2015, 243800), (2120, 231725), (2300, 213590), (2392, 205375), (2438, 201500), (2600, 188945), (2650, 185380), (2756, 178250), (2852, 172250), (2875, 170872), (2990, 164300), (3100, 158470), (3224, 152375), (3250, 151156), (3286, 149500), (3445, 142600), (3565, 137800), (3875, 126776), (4030, 121900), (4600, 106795), (4876, 100750), (5300, 92690), (5512, 89125), (5704, 86125), (5750, 85436), (5980, 82150), (6095, 80600), (6200, 79235), (6500, 75578), (6572, 74750), (6625, 74152), (6890, 71300), (7130, 68900), (7475, 65720), (7750, 63388), (8060, 60950), (8215, 59800), (9269, 53000), (9752, 50375), (10075, 48760), (10600, 46345), (11500, 42718), (11960, 41075), (12190, 40300), (13000, 37789), (13144, 37375), (13250, 37076), (13780, 35650), (14260, 34450), (14950, 32860), (15500, 31694), (15847, 31000), (16120, 30475), (16430, 29900), (17225, 28520), (17825, 27560), (18538, 26500), (20150, 24380), (21359, 23000)]