129617620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2819}}^1$

素因数の和:2869

約数の個数: 72

約数和(自身を含む): 315050400

約数和(自身を除く): 185432780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 484, 605, 836, 1045, 1210, 2090, 2299, 2420, 2819, 4180, 4598, 5638, 9196, 11276, 11495, 14095, 22990, 28190, 31009, 45980, 53561, 56380, 62018, 107122, 124036, 155045, 214244, 267805, 310090, 341099, 535610, 589171, 620180, 682198, 1071220, 1178342, 1364396, 1705495, 2356684, 2945855, 3410990, 5891710, 6480881, 6821980, 11783420, 12961762, 25923524, 32404405, 64808810, 129617620]

約数ペア:

[(1, 129617620), (2, 64808810), (4, 32404405), (5, 25923524), (10, 12961762), (11, 11783420), (19, 6821980), (20, 6480881), (22, 5891710), (38, 3410990), (44, 2945855), (55, 2356684), (76, 1705495), (95, 1364396), (110, 1178342), (121, 1071220), (190, 682198), (209, 620180), (220, 589171), (242, 535610), (380, 341099), (418, 310090), (484, 267805), (605, 214244), (836, 155045), (1045, 124036), (1210, 107122), (2090, 62018), (2299, 56380), (2420, 53561), (2819, 45980), (4180, 31009), (4598, 28190), (5638, 22990), (9196, 14095), (11276, 11495)]