205612020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{42307}}^1$

素因数の和:42331

約数の個数: 72

約数和(自身を含む): 646804704

約数和(自身を除く): 441192684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 42307, 84614, 126921, 169228, 211535, 253842, 380763, 423070, 507684, 634605, 761526, 846140, 1142289, 1269210, 1523052, 1903815, 2284578, 2538420, 3426867, 3807630, 4569156, 5711445, 6853734, 7615260, 10280601, 11422890, 13707468, 17134335, 20561202, 22845780, 34268670, 41122404, 51403005, 68537340, 102806010, 205612020]

約数ペア:

[(1, 205612020), (2, 102806010), (3, 68537340), (4, 51403005), (5, 41122404), (6, 34268670), (9, 22845780), (10, 20561202), (12, 17134335), (15, 13707468), (18, 11422890), (20, 10280601), (27, 7615260), (30, 6853734), (36, 5711445), (45, 4569156), (54, 3807630), (60, 3426867), (81, 2538420), (90, 2284578), (108, 1903815), (135, 1523052), (162, 1269210), (180, 1142289), (243, 846140), (270, 761526), (324, 634605), (405, 507684), (486, 423070), (540, 380763), (810, 253842), (972, 211535), (1215, 169228), (1620, 126921), (2430, 84614), (4860, 42307)]