64990980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2843}}^1$

素因数の和:2985

約数の個数: 72

約数和(自身を含む): 198761472

約数和(自身を除く): 133770492

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, 2843, 3810, 4572, 5686, 5715, 7620, 8529, 11372, 11430, 14215, 17058, 22860, 25587, 28430, 34116, 42645, 51174, 56860, 85290, 102348, 127935, 170580, 255870, 361061, 511740, 722122, 1083183, 1444244, 1805305, 2166366, 3249549, 3610610, 4332732, 5415915, 6499098, 7221220, 10831830, 12998196, 16247745, 21663660, 32495490, 64990980]

約数ペア:

[(1, 64990980), (2, 32495490), (3, 21663660), (4, 16247745), (5, 12998196), (6, 10831830), (9, 7221220), (10, 6499098), (12, 5415915), (15, 4332732), (18, 3610610), (20, 3249549), (30, 2166366), (36, 1805305), (45, 1444244), (60, 1083183), (90, 722122), (127, 511740), (180, 361061), (254, 255870), (381, 170580), (508, 127935), (635, 102348), (762, 85290), (1143, 56860), (1270, 51174), (1524, 42645), (1905, 34116), (2286, 28430), (2540, 25587), (2843, 22860), (3810, 17058), (4572, 14215), (5686, 11430), (5715, 11372), (7620, 8529)]