20180855320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{234989}}^1$

素因数の和:235132

約数の個数: 64

約数和(自身を含む): 48219948000

約数和(自身を除く): 28039092680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 226, 380, 452, 565, 760, 904, 1130, 2147, 2260, 4294, 4520, 8588, 10735, 17176, 21470, 42940, 85880, 234989, 469978, 939956, 1174945, 1879912, 2349890, 4464791, 4699780, 8929582, 9399560, 17859164, 22323955, 26553757, 35718328, 44647910, 53107514, 89295820, 106215028, 132768785, 178591640, 212430056, 265537570, 504521383, 531075140, 1009042766, 1062150280, 2018085532, 2522606915, 4036171064, 5045213830, 10090427660, 20180855320]

約数ペア:

[(1, 20180855320), (2, 10090427660), (4, 5045213830), (5, 4036171064), (8, 2522606915), (10, 2018085532), (19, 1062150280), (20, 1009042766), (38, 531075140), (40, 504521383), (76, 265537570), (95, 212430056), (113, 178591640), (152, 132768785), (190, 106215028), (226, 89295820), (380, 53107514), (452, 44647910), (565, 35718328), (760, 26553757), (904, 22323955), (1130, 17859164), (2147, 9399560), (2260, 8929582), (4294, 4699780), (4520, 4464791), (8588, 2349890), (10735, 1879912), (17176, 1174945), (21470, 939956), (42940, 469978), (85880, 234989)]