128977640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:483

約数の個数: 128

約数和(自身を含む): 343854720

約数和(自身を除く): 214877080

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 43, 44, 55, 68, 85, 86, 88, 110, 136, 170, 172, 187, 215, 220, 340, 344, 374, 401, 430, 440, 473, 680, 731, 748, 802, 860, 935, 946, 1462, 1496, 1604, 1720, 1870, 1892, 2005, 2365, 2924, 3208, 3655, 3740, 3784, 4010, 4411, 4730, 5848, 6817, 7310, 7480, 8020, 8041, 8822, 9460, 13634, 14620, 16040, 16082, 17243, 17644, 18920, 22055, 27268, 29240, 32164, 34085, 34486, 35288, 40205, 44110, 54536, 64328, 68170, 68972, 74987, 80410, 86215, 88220, 136340, 137944, 149974, 160820, 172430, 176440, 189673, 272680, 293131, 299948, 321640, 344860, 374935, 379346, 586262, 599896, 689720, 749870, 758692, 948365, 1172524, 1465655, 1499740, 1517384, 1896730, 2345048, 2931310, 2999480, 3224441, 3793460, 5862620, 6448882, 7586920, 11725240, 12897764, 16122205, 25795528, 32244410, 64488820, 128977640]

約数ペア:

[(1, 128977640), (2, 64488820), (4, 32244410), (5, 25795528), (8, 16122205), (10, 12897764), (11, 11725240), (17, 7586920), (20, 6448882), (22, 5862620), (34, 3793460), (40, 3224441), (43, 2999480), (44, 2931310), (55, 2345048), (68, 1896730), (85, 1517384), (86, 1499740), (88, 1465655), (110, 1172524), (136, 948365), (170, 758692), (172, 749870), (187, 689720), (215, 599896), (220, 586262), (340, 379346), (344, 374935), (374, 344860), (401, 321640), (430, 299948), (440, 293131), (473, 272680), (680, 189673), (731, 176440), (748, 172430), (802, 160820), (860, 149974), (935, 137944), (946, 136340), (1462, 88220), (1496, 86215), (1604, 80410), (1720, 74987), (1870, 68972), (1892, 68170), (2005, 64328), (2365, 54536), (2924, 44110), (3208, 40205), (3655, 35288), (3740, 34486), (3784, 34085), (4010, 32164), (4411, 29240), (4730, 27268), (5848, 22055), (6817, 18920), (7310, 17644), (7480, 17243), (8020, 16082), (8041, 16040), (8822, 14620), (9460, 13634)]