246861680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:120

約数の個数: 180

約数和(自身を含む): 675994680

約数和(自身を除く): 429133000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 169, 190, 208, 247, 248, 260, 304, 310, 338, 380, 403, 494, 496, 520, 589, 620, 676, 760, 806, 845, 961, 988, 1040, 1178, 1235, 1240, 1352, 1520, 1612, 1690, 1922, 1976, 2015, 2356, 2470, 2480, 2704, 2945, 3211, 3224, 3380, 3844, 3952, 4030, 4712, 4805, 4940, 5239, 5890, 6422, 6448, 6760, 7657, 7688, 8060, 9424, 9610, 9880, 10478, 11780, 12493, 12844, 13520, 15314, 15376, 16055, 16120, 18259, 19220, 19760, 20956, 23560, 24986, 25688, 26195, 30628, 32110, 32240, 36518, 38285, 38440, 41912, 47120, 49972, 51376, 52390, 61256, 62465, 64220, 73036, 76570, 76880, 83824, 91295, 99541, 99944, 104780, 122512, 124930, 128440, 146072, 153140, 162409, 182590, 199082, 199888, 209560, 237367, 249860, 256880, 292144, 306280, 324818, 365180, 398164, 419120, 474734, 497705, 499720, 612560, 649636, 730360, 796328, 812045, 949468, 995410, 999440, 1186835, 1299272, 1460720, 1592656, 1624090, 1898936, 1990820, 2373670, 2598544, 3085771, 3248180, 3797872, 3981640, 4747340, 6171542, 6496360, 7963280, 9494680, 12343084, 12992720, 15428855, 18989360, 24686168, 30857710, 49372336, 61715420, 123430840, 246861680]

約数ペア:

[(1, 246861680), (2, 123430840), (4, 61715420), (5, 49372336), (8, 30857710), (10, 24686168), (13, 18989360), (16, 15428855), (19, 12992720), (20, 12343084), (26, 9494680), (31, 7963280), (38, 6496360), (40, 6171542), (52, 4747340), (62, 3981640), (65, 3797872), (76, 3248180), (80, 3085771), (95, 2598544), (104, 2373670), (124, 1990820), (130, 1898936), (152, 1624090), (155, 1592656), (169, 1460720), (190, 1299272), (208, 1186835), (247, 999440), (248, 995410), (260, 949468), (304, 812045), (310, 796328), (338, 730360), (380, 649636), (403, 612560), (494, 499720), (496, 497705), (520, 474734), (589, 419120), (620, 398164), (676, 365180), (760, 324818), (806, 306280), (845, 292144), (961, 256880), (988, 249860), (1040, 237367), (1178, 209560), (1235, 199888), (1240, 199082), (1352, 182590), (1520, 162409), (1612, 153140), (1690, 146072), (1922, 128440), (1976, 124930), (2015, 122512), (2356, 104780), (2470, 99944), (2480, 99541), (2704, 91295), (2945, 83824), (3211, 76880), (3224, 76570), (3380, 73036), (3844, 64220), (3952, 62465), (4030, 61256), (4712, 52390), (4805, 51376), (4940, 49972), (5239, 47120), (5890, 41912), (6422, 38440), (6448, 38285), (6760, 36518), (7657, 32240), (7688, 32110), (8060, 30628), (9424, 26195), (9610, 25688), (9880, 24986), (10478, 23560), (11780, 20956), (12493, 19760), (12844, 19220), (13520, 18259), (15314, 16120), (15376, 16055)]