15851940

素因数分解:

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

素因数の和:20348

約数の個数: 48

約数和(自身を含む): 47802048

約数和(自身を除く): 31950108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20323, 40646, 60969, 81292, 101615, 121938, 203230, 243876, 264199, 304845, 406460, 528398, 609690, 792597, 1056796, 1219380, 1320995, 1585194, 2641990, 3170388, 3962985, 5283980, 7925970, 15851940]

約数ペア:

[(1, 15851940), (2, 7925970), (3, 5283980), (4, 3962985), (5, 3170388), (6, 2641990), (10, 1585194), (12, 1320995), (13, 1219380), (15, 1056796), (20, 792597), (26, 609690), (30, 528398), (39, 406460), (52, 304845), (60, 264199), (65, 243876), (78, 203230), (130, 121938), (156, 101615), (195, 81292), (260, 60969), (390, 40646), (780, 20323)]