207850120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{557}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 494164800

約数和(自身を除く): 286314680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 491, 557, 760, 982, 1114, 1964, 2228, 2455, 2785, 3928, 4456, 4910, 5570, 9329, 9820, 10583, 11140, 18658, 19640, 21166, 22280, 37316, 42332, 46645, 52915, 74632, 84664, 93290, 105830, 186580, 211660, 273487, 373160, 423320, 546974, 1093948, 1367435, 2187896, 2734870, 5196253, 5469740, 10392506, 10939480, 20785012, 25981265, 41570024, 51962530, 103925060, 207850120]

約数ペア:

[(1, 207850120), (2, 103925060), (4, 51962530), (5, 41570024), (8, 25981265), (10, 20785012), (19, 10939480), (20, 10392506), (38, 5469740), (40, 5196253), (76, 2734870), (95, 2187896), (152, 1367435), (190, 1093948), (380, 546974), (491, 423320), (557, 373160), (760, 273487), (982, 211660), (1114, 186580), (1964, 105830), (2228, 93290), (2455, 84664), (2785, 74632), (3928, 52915), (4456, 46645), (4910, 42332), (5570, 37316), (9329, 22280), (9820, 21166), (10583, 19640), (11140, 18658)]