19650280

素因数分解:

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

素因数の和:131

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 32604440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 53, 62, 65, 92, 104, 106, 115, 124, 130, 155, 184, 212, 230, 248, 260, 265, 299, 310, 403, 424, 460, 520, 530, 598, 620, 689, 713, 806, 920, 1060, 1196, 1219, 1240, 1378, 1426, 1495, 1612, 1643, 2015, 2120, 2392, 2438, 2756, 2852, 2990, 3224, 3286, 3445, 3565, 4030, 4876, 5512, 5704, 5980, 6095, 6572, 6890, 7130, 8060, 8215, 9269, 9752, 11960, 12190, 13144, 13780, 14260, 15847, 16120, 16430, 18538, 21359, 24380, 27560, 28520, 31694, 32860, 37076, 37789, 42718, 46345, 48760, 63388, 65720, 74152, 75578, 79235, 85436, 92690, 106795, 126776, 151156, 158470, 170872, 185380, 188945, 213590, 302312, 316940, 370760, 377890, 427180, 491257, 633880, 755780, 854360, 982514, 1511560, 1965028, 2456285, 3930056, 4912570, 9825140, 19650280]

約数ペア:

[(1, 19650280), (2, 9825140), (4, 4912570), (5, 3930056), (8, 2456285), (10, 1965028), (13, 1511560), (20, 982514), (23, 854360), (26, 755780), (31, 633880), (40, 491257), (46, 427180), (52, 377890), (53, 370760), (62, 316940), (65, 302312), (92, 213590), (104, 188945), (106, 185380), (115, 170872), (124, 158470), (130, 151156), (155, 126776), (184, 106795), (212, 92690), (230, 85436), (248, 79235), (260, 75578), (265, 74152), (299, 65720), (310, 63388), (403, 48760), (424, 46345), (460, 42718), (520, 37789), (530, 37076), (598, 32860), (620, 31694), (689, 28520), (713, 27560), (806, 24380), (920, 21359), (1060, 18538), (1196, 16430), (1219, 16120), (1240, 15847), (1378, 14260), (1426, 13780), (1495, 13144), (1612, 12190), (1643, 11960), (2015, 9752), (2120, 9269), (2392, 8215), (2438, 8060), (2756, 7130), (2852, 6890), (2990, 6572), (3224, 6095), (3286, 5980), (3445, 5704), (3565, 5512), (4030, 4876)]