395979980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{443}}^1$

素因数の和:719

約数の個数: 96

約数和(自身を含む): 966712320

約数和(自身を除く): 570732340

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 239, 340, 374, 443, 478, 748, 886, 935, 956, 1195, 1772, 1870, 2215, 2390, 2629, 3740, 4063, 4430, 4780, 4873, 5258, 7531, 8126, 8860, 9746, 10516, 13145, 15062, 16252, 19492, 20315, 24365, 26290, 30124, 37655, 40630, 44693, 48730, 52580, 75310, 81260, 82841, 89386, 97460, 105877, 150620, 165682, 178772, 211754, 223465, 331364, 414205, 423508, 446930, 529385, 828410, 893860, 1058770, 1164647, 1656820, 1799909, 2117540, 2329294, 3599818, 4658588, 5823235, 7199636, 8999545, 11646470, 17999090, 19798999, 23292940, 35998180, 39597998, 79195996, 98994995, 197989990, 395979980]

約数ペア:

[(1, 395979980), (2, 197989990), (4, 98994995), (5, 79195996), (10, 39597998), (11, 35998180), (17, 23292940), (20, 19798999), (22, 17999090), (34, 11646470), (44, 8999545), (55, 7199636), (68, 5823235), (85, 4658588), (110, 3599818), (170, 2329294), (187, 2117540), (220, 1799909), (239, 1656820), (340, 1164647), (374, 1058770), (443, 893860), (478, 828410), (748, 529385), (886, 446930), (935, 423508), (956, 414205), (1195, 331364), (1772, 223465), (1870, 211754), (2215, 178772), (2390, 165682), (2629, 150620), (3740, 105877), (4063, 97460), (4430, 89386), (4780, 82841), (4873, 81260), (5258, 75310), (7531, 52580), (8126, 48730), (8860, 44693), (9746, 40630), (10516, 37655), (13145, 30124), (15062, 26290), (16252, 24365), (19492, 20315)]