61412780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 153679680

約数和(自身を除く): 92266900

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 109, 110, 130, 143, 197, 218, 220, 260, 286, 394, 436, 545, 572, 715, 788, 985, 1090, 1199, 1417, 1430, 1970, 2167, 2180, 2398, 2561, 2834, 2860, 3940, 4334, 4796, 5122, 5668, 5995, 7085, 8668, 10244, 10835, 11990, 12805, 14170, 15587, 21473, 21670, 23980, 25610, 28171, 28340, 31174, 42946, 43340, 51220, 56342, 62348, 77935, 85892, 107365, 112684, 140855, 155870, 214730, 236203, 279149, 281710, 311740, 429460, 472406, 558298, 563420, 944812, 1116596, 1181015, 1395745, 2362030, 2791490, 3070639, 4724060, 5582980, 6141278, 12282556, 15353195, 30706390, 61412780]

約数ペア:

[(1, 61412780), (2, 30706390), (4, 15353195), (5, 12282556), (10, 6141278), (11, 5582980), (13, 4724060), (20, 3070639), (22, 2791490), (26, 2362030), (44, 1395745), (52, 1181015), (55, 1116596), (65, 944812), (109, 563420), (110, 558298), (130, 472406), (143, 429460), (197, 311740), (218, 281710), (220, 279149), (260, 236203), (286, 214730), (394, 155870), (436, 140855), (545, 112684), (572, 107365), (715, 85892), (788, 77935), (985, 62348), (1090, 56342), (1199, 51220), (1417, 43340), (1430, 42946), (1970, 31174), (2167, 28340), (2180, 28171), (2398, 25610), (2561, 23980), (2834, 21670), (2860, 21473), (3940, 15587), (4334, 14170), (4796, 12805), (5122, 11990), (5668, 10835), (5995, 10244), (7085, 8668)]