61561980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2693}}^1$

素因数の和:2835

約数の個数: 72

約数和(自身を含む): 188278272

約数和(自身を除く): 126716292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 2693, 3810, 4572, 5386, 5715, 7620, 8079, 10772, 11430, 13465, 16158, 22860, 24237, 26930, 32316, 40395, 48474, 53860, 80790, 96948, 121185, 161580, 242370, 342011, 484740, 684022, 1026033, 1368044, 1710055, 2052066, 3078099, 3420110, 4104132, 5130165, 6156198, 6840220, 10260330, 12312396, 15390495, 20520660, 30780990, 61561980]

約数ペア:

[(1, 61561980), (2, 30780990), (3, 20520660), (4, 15390495), (5, 12312396), (6, 10260330), (9, 6840220), (10, 6156198), (12, 5130165), (15, 4104132), (18, 3420110), (20, 3078099), (30, 2052066), (36, 1710055), (45, 1368044), (60, 1026033), (90, 684022), (127, 484740), (180, 342011), (254, 242370), (381, 161580), (508, 121185), (635, 96948), (762, 80790), (1143, 53860), (1270, 48474), (1524, 40395), (1905, 32316), (2286, 26930), (2540, 24237), (2693, 22860), (3810, 16158), (4572, 13465), (5386, 11430), (5715, 10772), (7620, 8079)]