209984080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{373}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 507538944

約数和(自身を除く): 297554864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 227, 248, 310, 373, 454, 496, 620, 746, 908, 1135, 1240, 1492, 1816, 1865, 2270, 2480, 2984, 3632, 3730, 4540, 5968, 7037, 7460, 9080, 11563, 14074, 14920, 18160, 23126, 28148, 29840, 35185, 46252, 56296, 57815, 70370, 84671, 92504, 112592, 115630, 140740, 169342, 185008, 231260, 281480, 338684, 423355, 462520, 562960, 677368, 846710, 925040, 1354736, 1693420, 2624801, 3386840, 5249602, 6773680, 10499204, 13124005, 20998408, 26248010, 41996816, 52496020, 104992040, 209984080]

約数ペア:

[(1, 209984080), (2, 104992040), (4, 52496020), (5, 41996816), (8, 26248010), (10, 20998408), (16, 13124005), (20, 10499204), (31, 6773680), (40, 5249602), (62, 3386840), (80, 2624801), (124, 1693420), (155, 1354736), (227, 925040), (248, 846710), (310, 677368), (373, 562960), (454, 462520), (496, 423355), (620, 338684), (746, 281480), (908, 231260), (1135, 185008), (1240, 169342), (1492, 140740), (1816, 115630), (1865, 112592), (2270, 92504), (2480, 84671), (2984, 70370), (3632, 57815), (3730, 56296), (4540, 46252), (5968, 35185), (7037, 29840), (7460, 28148), (9080, 23126), (11563, 18160), (14074, 14920)]