18687472

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{467}}^1$

素因数の和:577

約数の個数: 40

約数和(自身を含む): 37778832

約数和(自身を除く): 19091360

約数列:

[1, 2, 4, 8, 16, 41, 61, 82, 122, 164, 244, 328, 467, 488, 656, 934, 976, 1868, 2501, 3736, 5002, 7472, 10004, 19147, 20008, 28487, 38294, 40016, 56974, 76588, 113948, 153176, 227896, 306352, 455792, 1167967, 2335934, 4671868, 9343736, 18687472]

約数ペア:

[(1, 18687472), (2, 9343736), (4, 4671868), (8, 2335934), (16, 1167967), (41, 455792), (61, 306352), (82, 227896), (122, 153176), (164, 113948), (244, 76588), (328, 56974), (467, 40016), (488, 38294), (656, 28487), (934, 20008), (976, 19147), (1868, 10004), (2501, 7472), (3736, 5002)]