2015015420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{7639}}^1$

素因数の和:7779

約数の個数: 72

約数和(自身を含む): 4694474400

約数和(自身を除く): 2679458980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 121, 218, 220, 242, 436, 484, 545, 605, 1090, 1199, 1210, 2180, 2398, 2420, 4796, 5995, 7639, 11990, 13189, 15278, 23980, 26378, 30556, 38195, 52756, 65945, 76390, 84029, 131890, 152780, 168058, 263780, 336116, 420145, 832651, 840290, 924319, 1665302, 1680580, 1848638, 3330604, 3697276, 4163255, 4621595, 8326510, 9159161, 9243190, 16653020, 18318322, 18486380, 36636644, 45795805, 91591610, 100750771, 183183220, 201501542, 403003084, 503753855, 1007507710, 2015015420]

約数ペア:

[(1, 2015015420), (2, 1007507710), (4, 503753855), (5, 403003084), (10, 201501542), (11, 183183220), (20, 100750771), (22, 91591610), (44, 45795805), (55, 36636644), (109, 18486380), (110, 18318322), (121, 16653020), (218, 9243190), (220, 9159161), (242, 8326510), (436, 4621595), (484, 4163255), (545, 3697276), (605, 3330604), (1090, 1848638), (1199, 1680580), (1210, 1665302), (2180, 924319), (2398, 840290), (2420, 832651), (4796, 420145), (5995, 336116), (7639, 263780), (11990, 168058), (13189, 152780), (15278, 131890), (23980, 84029), (26378, 76390), (30556, 65945), (38195, 52756)]