25414420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 55641600

約数和(自身を除く): 30227180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 179, 229, 310, 358, 458, 620, 716, 895, 916, 1145, 1790, 2290, 3580, 4580, 5549, 7099, 11098, 14198, 22196, 27745, 28396, 35495, 40991, 55490, 70990, 81982, 110980, 141980, 163964, 204955, 409910, 819820, 1270721, 2541442, 5082884, 6353605, 12707210, 25414420]

約数ペア:

[(1, 25414420), (2, 12707210), (4, 6353605), (5, 5082884), (10, 2541442), (20, 1270721), (31, 819820), (62, 409910), (124, 204955), (155, 163964), (179, 141980), (229, 110980), (310, 81982), (358, 70990), (458, 55490), (620, 40991), (716, 35495), (895, 28396), (916, 27745), (1145, 22196), (1790, 14198), (2290, 11098), (3580, 7099), (4580, 5549)]