156780880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 383725440

約数和(自身を除く): 226944560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 139, 184, 230, 278, 368, 460, 556, 613, 695, 920, 1112, 1226, 1390, 1840, 2224, 2452, 2780, 3065, 3197, 4904, 5560, 6130, 6394, 9808, 11120, 12260, 12788, 14099, 15985, 24520, 25576, 28198, 31970, 49040, 51152, 56396, 63940, 70495, 85207, 112792, 127880, 140990, 170414, 225584, 255760, 281980, 340828, 426035, 563960, 681656, 852070, 1127920, 1363312, 1704140, 1959761, 3408280, 3919522, 6816560, 7839044, 9798805, 15678088, 19597610, 31356176, 39195220, 78390440, 156780880]

約数ペア:

[(1, 156780880), (2, 78390440), (4, 39195220), (5, 31356176), (8, 19597610), (10, 15678088), (16, 9798805), (20, 7839044), (23, 6816560), (40, 3919522), (46, 3408280), (80, 1959761), (92, 1704140), (115, 1363312), (139, 1127920), (184, 852070), (230, 681656), (278, 563960), (368, 426035), (460, 340828), (556, 281980), (613, 255760), (695, 225584), (920, 170414), (1112, 140990), (1226, 127880), (1390, 112792), (1840, 85207), (2224, 70495), (2452, 63940), (2780, 56396), (3065, 51152), (3197, 49040), (4904, 31970), (5560, 28198), (6130, 25576), (6394, 24520), (9808, 15985), (11120, 14099), (12260, 12788)]