64720550

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 124773264

約数和(自身を除く): 60052714

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 131, 205, 241, 262, 410, 482, 655, 1025, 1205, 1310, 2050, 2410, 3275, 5371, 6025, 6550, 9881, 10742, 12050, 19762, 26855, 31571, 49405, 53710, 63142, 98810, 134275, 157855, 247025, 268550, 315710, 494050, 789275, 1294411, 1578550, 2588822, 6472055, 12944110, 32360275, 64720550]

約数ペア:

[(1, 64720550), (2, 32360275), (5, 12944110), (10, 6472055), (25, 2588822), (41, 1578550), (50, 1294411), (82, 789275), (131, 494050), (205, 315710), (241, 268550), (262, 247025), (410, 157855), (482, 134275), (655, 98810), (1025, 63142), (1205, 53710), (1310, 49405), (2050, 31571), (2410, 26855), (3275, 19762), (5371, 12050), (6025, 10742), (6550, 9881)]