20258364

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 55617408

約数和(自身を除く): 35359044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 131, 147, 196, 262, 263, 294, 393, 524, 526, 588, 786, 789, 917, 1052, 1572, 1578, 1834, 1841, 2751, 3156, 3668, 3682, 5502, 5523, 6419, 7364, 11004, 11046, 12838, 12887, 19257, 22092, 25676, 25774, 34453, 38514, 38661, 51548, 68906, 77028, 77322, 103359, 137812, 154644, 206718, 241171, 413436, 482342, 723513, 964684, 1447026, 1688197, 2894052, 3376394, 5064591, 6752788, 10129182, 20258364]

約数ペア:

[(1, 20258364), (2, 10129182), (3, 6752788), (4, 5064591), (6, 3376394), (7, 2894052), (12, 1688197), (14, 1447026), (21, 964684), (28, 723513), (42, 482342), (49, 413436), (84, 241171), (98, 206718), (131, 154644), (147, 137812), (196, 103359), (262, 77322), (263, 77028), (294, 68906), (393, 51548), (524, 38661), (526, 38514), (588, 34453), (786, 25774), (789, 25676), (917, 22092), (1052, 19257), (1572, 12887), (1578, 12838), (1834, 11046), (1841, 11004), (2751, 7364), (3156, 6419), (3668, 5523), (3682, 5502)]