25670020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 55965168

約数和(自身を除く): 30295148

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 106, 122, 212, 244, 265, 305, 397, 530, 610, 794, 1060, 1220, 1588, 1985, 3233, 3970, 6466, 7940, 12932, 16165, 21041, 24217, 32330, 42082, 48434, 64660, 84164, 96868, 105205, 121085, 210410, 242170, 420820, 484340, 1283501, 2567002, 5134004, 6417505, 12835010, 25670020]

約数ペア:

[(1, 25670020), (2, 12835010), (4, 6417505), (5, 5134004), (10, 2567002), (20, 1283501), (53, 484340), (61, 420820), (106, 242170), (122, 210410), (212, 121085), (244, 105205), (265, 96868), (305, 84164), (397, 64660), (530, 48434), (610, 42082), (794, 32330), (1060, 24217), (1220, 21041), (1588, 16165), (1985, 12932), (3233, 7940), (3970, 6466)]