646951970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1193}}^1$

素因数の和:1395

約数の個数: 64

約数和(自身を含む): 1364484096

約数和(自身を除く): 717532126

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 127, 254, 305, 427, 610, 635, 854, 889, 1193, 1270, 1778, 2135, 2386, 4270, 4445, 5965, 7747, 8351, 8890, 11930, 15494, 16702, 38735, 41755, 54229, 72773, 77470, 83510, 108458, 145546, 151511, 271145, 303022, 363865, 509411, 542290, 727730, 757555, 1018822, 1060577, 1515110, 2121154, 2547055, 5094110, 5302885, 9242171, 10605770, 18484342, 46210855, 64695197, 92421710, 129390394, 323475985, 646951970]

約数ペア:

[(1, 646951970), (2, 323475985), (5, 129390394), (7, 92421710), (10, 64695197), (14, 46210855), (35, 18484342), (61, 10605770), (70, 9242171), (122, 5302885), (127, 5094110), (254, 2547055), (305, 2121154), (427, 1515110), (610, 1060577), (635, 1018822), (854, 757555), (889, 727730), (1193, 542290), (1270, 509411), (1778, 363865), (2135, 303022), (2386, 271145), (4270, 151511), (4445, 145546), (5965, 108458), (7747, 83510), (8351, 77470), (8890, 72773), (11930, 54229), (15494, 41755), (16702, 38735)]