721976580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308537}}^1$

素因数の和:308565

約数の個数: 72

約数和(自身を含む): 2358464472

約数和(自身を除く): 1636487892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 308537, 617074, 925611, 1234148, 1542685, 1851222, 2776833, 3085370, 3702444, 4010981, 4628055, 5553666, 6170740, 8021962, 9256110, 11107332, 12032943, 13884165, 16043924, 18512220, 20054905, 24065886, 27768330, 36098829, 40109810, 48131772, 55536660, 60164715, 72197658, 80219620, 120329430, 144395316, 180494145, 240658860, 360988290, 721976580]

約数ペア:

[(1, 721976580), (2, 360988290), (3, 240658860), (4, 180494145), (5, 144395316), (6, 120329430), (9, 80219620), (10, 72197658), (12, 60164715), (13, 55536660), (15, 48131772), (18, 40109810), (20, 36098829), (26, 27768330), (30, 24065886), (36, 20054905), (39, 18512220), (45, 16043924), (52, 13884165), (60, 12032943), (65, 11107332), (78, 9256110), (90, 8021962), (117, 6170740), (130, 5553666), (156, 4628055), (180, 4010981), (195, 3702444), (234, 3085370), (260, 2776833), (390, 1851222), (468, 1542685), (585, 1234148), (780, 925611), (1170, 617074), (2340, 308537)]