253399960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1783}}^1$

素因数の和:1841

約数の個数: 128

約数和(自身を含む): 693619200

約数和(自身を除く): 440219240

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 85, 88, 95, 110, 136, 152, 170, 187, 190, 209, 220, 323, 340, 374, 380, 418, 440, 646, 680, 748, 760, 836, 935, 1045, 1292, 1496, 1615, 1672, 1783, 1870, 2090, 2584, 3230, 3553, 3566, 3740, 4180, 6460, 7106, 7132, 7480, 8360, 8915, 12920, 14212, 14264, 17765, 17830, 19613, 28424, 30311, 33877, 35530, 35660, 39226, 60622, 67754, 71060, 71320, 78452, 98065, 121244, 135508, 142120, 151555, 156904, 169385, 196130, 242488, 271016, 303110, 333421, 338770, 372647, 392260, 575909, 606220, 666842, 677540, 745294, 784520, 1151818, 1212440, 1333684, 1355080, 1490588, 1667105, 1863235, 2303636, 2667368, 2879545, 2981176, 3334210, 3726470, 4607272, 5759090, 6334999, 6668420, 7452940, 11518180, 12669998, 13336840, 14905880, 23036360, 25339996, 31674995, 50679992, 63349990, 126699980, 253399960]

約数ペア:

[(1, 253399960), (2, 126699980), (4, 63349990), (5, 50679992), (8, 31674995), (10, 25339996), (11, 23036360), (17, 14905880), (19, 13336840), (20, 12669998), (22, 11518180), (34, 7452940), (38, 6668420), (40, 6334999), (44, 5759090), (55, 4607272), (68, 3726470), (76, 3334210), (85, 2981176), (88, 2879545), (95, 2667368), (110, 2303636), (136, 1863235), (152, 1667105), (170, 1490588), (187, 1355080), (190, 1333684), (209, 1212440), (220, 1151818), (323, 784520), (340, 745294), (374, 677540), (380, 666842), (418, 606220), (440, 575909), (646, 392260), (680, 372647), (748, 338770), (760, 333421), (836, 303110), (935, 271016), (1045, 242488), (1292, 196130), (1496, 169385), (1615, 156904), (1672, 151555), (1783, 142120), (1870, 135508), (2090, 121244), (2584, 98065), (3230, 78452), (3553, 71320), (3566, 71060), (3740, 67754), (4180, 60622), (6460, 39226), (7106, 35660), (7132, 35530), (7480, 33877), (8360, 30311), (8915, 28424), (12920, 19613), (14212, 17830), (14264, 17765)]