400364440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{6299}}^1$

素因数の和:6544

約数の個数: 64

約数和(自身を含む): 1034208000

約数和(自身を除く): 633843560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 454, 908, 1135, 1589, 1816, 2270, 3178, 4540, 6299, 6356, 7945, 9080, 12598, 12712, 15890, 25196, 31495, 31780, 44093, 50392, 62990, 63560, 88186, 125980, 176372, 220465, 251960, 352744, 440930, 881860, 1429873, 1763720, 2859746, 5719492, 7149365, 10009111, 11438984, 14298730, 20018222, 28597460, 40036444, 50045555, 57194920, 80072888, 100091110, 200182220, 400364440]

約数ペア:

[(1, 400364440), (2, 200182220), (4, 100091110), (5, 80072888), (7, 57194920), (8, 50045555), (10, 40036444), (14, 28597460), (20, 20018222), (28, 14298730), (35, 11438984), (40, 10009111), (56, 7149365), (70, 5719492), (140, 2859746), (227, 1763720), (280, 1429873), (454, 881860), (908, 440930), (1135, 352744), (1589, 251960), (1816, 220465), (2270, 176372), (3178, 125980), (4540, 88186), (6299, 63560), (6356, 62990), (7945, 50392), (9080, 44093), (12598, 31780), (12712, 31495), (15890, 25196)]