407087920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{2503}}^1$

素因数の和:2642

約数の個数: 80

約数和(自身を含む): 1006007040

約数和(自身を除く): 598919120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 107, 152, 190, 214, 304, 380, 428, 535, 760, 856, 1070, 1520, 1712, 2033, 2140, 2503, 4066, 4280, 5006, 8132, 8560, 10012, 10165, 12515, 16264, 20024, 20330, 25030, 32528, 40048, 40660, 47557, 50060, 81320, 95114, 100120, 162640, 190228, 200240, 237785, 267821, 380456, 475570, 535642, 760912, 951140, 1071284, 1339105, 1902280, 2142568, 2678210, 3804560, 4285136, 5088599, 5356420, 10177198, 10712840, 20354396, 21425680, 25442995, 40708792, 50885990, 81417584, 101771980, 203543960, 407087920]

約数ペア:

[(1, 407087920), (2, 203543960), (4, 101771980), (5, 81417584), (8, 50885990), (10, 40708792), (16, 25442995), (19, 21425680), (20, 20354396), (38, 10712840), (40, 10177198), (76, 5356420), (80, 5088599), (95, 4285136), (107, 3804560), (152, 2678210), (190, 2142568), (214, 1902280), (304, 1339105), (380, 1071284), (428, 951140), (535, 760912), (760, 535642), (856, 475570), (1070, 380456), (1520, 267821), (1712, 237785), (2033, 200240), (2140, 190228), (2503, 162640), (4066, 100120), (4280, 95114), (5006, 81320), (8132, 50060), (8560, 47557), (10012, 40660), (10165, 40048), (12515, 32528), (16264, 25030), (20024, 20330)]