31703880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20323}}^1$

素因数の和:20350

約数の個数: 64

約数和(自身を含む): 102432960

約数和(自身を除く): 70729080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20323, 40646, 60969, 81292, 101615, 121938, 162584, 203230, 243876, 264199, 304845, 406460, 487752, 528398, 609690, 792597, 812920, 1056796, 1219380, 1320995, 1585194, 2113592, 2438760, 2641990, 3170388, 3962985, 5283980, 6340776, 7925970, 10567960, 15851940, 31703880]

約数ペア:

[(1, 31703880), (2, 15851940), (3, 10567960), (4, 7925970), (5, 6340776), (6, 5283980), (8, 3962985), (10, 3170388), (12, 2641990), (13, 2438760), (15, 2113592), (20, 1585194), (24, 1320995), (26, 1219380), (30, 1056796), (39, 812920), (40, 792597), (52, 609690), (60, 528398), (65, 487752), (78, 406460), (104, 304845), (120, 264199), (130, 243876), (156, 203230), (195, 162584), (260, 121938), (312, 101615), (390, 81292), (520, 60969), (780, 40646), (1560, 20323)]