256687860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29917}}^1$

素因数の和:29953

約数の個数: 96

約数和(自身を含む): 844405632

約数和(自身を除く): 587717772

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2860, 4290, 8580, 29917, 59834, 89751, 119668, 149585, 179502, 299170, 329087, 359004, 388921, 448755, 598340, 658174, 777842, 897510, 987261, 1166763, 1316348, 1555684, 1645435, 1795020, 1944605, 1974522, 2333526, 3290870, 3889210, 3949044, 4278131, 4667052, 4936305, 5833815, 6581740, 7778420, 8556262, 9872610, 11667630, 12834393, 17112524, 19745220, 21390655, 23335260, 25668786, 42781310, 51337572, 64171965, 85562620, 128343930, 256687860]

約数ペア:

[(1, 256687860), (2, 128343930), (3, 85562620), (4, 64171965), (5, 51337572), (6, 42781310), (10, 25668786), (11, 23335260), (12, 21390655), (13, 19745220), (15, 17112524), (20, 12834393), (22, 11667630), (26, 9872610), (30, 8556262), (33, 7778420), (39, 6581740), (44, 5833815), (52, 4936305), (55, 4667052), (60, 4278131), (65, 3949044), (66, 3889210), (78, 3290870), (110, 2333526), (130, 1974522), (132, 1944605), (143, 1795020), (156, 1645435), (165, 1555684), (195, 1316348), (220, 1166763), (260, 987261), (286, 897510), (330, 777842), (390, 658174), (429, 598340), (572, 448755), (660, 388921), (715, 359004), (780, 329087), (858, 299170), (1430, 179502), (1716, 149585), (2145, 119668), (2860, 89751), (4290, 59834), (8580, 29917)]