28955556

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{751}}^1$

素因数の和:791

約数の個数: 120

約数和(自身を含む): 91719936

約数和(自身を除く): 62764380

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 51, 54, 63, 68, 81, 84, 102, 108, 119, 126, 153, 162, 189, 204, 238, 252, 306, 324, 357, 378, 459, 476, 567, 612, 714, 751, 756, 918, 1071, 1134, 1377, 1428, 1502, 1836, 2142, 2253, 2268, 2754, 3004, 3213, 4284, 4506, 5257, 5508, 6426, 6759, 9012, 9639, 10514, 12767, 12852, 13518, 15771, 19278, 20277, 21028, 25534, 27036, 31542, 38301, 38556, 40554, 47313, 51068, 60831, 63084, 76602, 81108, 89369, 94626, 114903, 121662, 141939, 153204, 178738, 189252, 229806, 243324, 268107, 283878, 344709, 357476, 425817, 459612, 536214, 567756, 689418, 804321, 851634, 1034127, 1072428, 1378836, 1608642, 1703268, 2068254, 2412963, 3217284, 4136508, 4825926, 7238889, 9651852, 14477778, 28955556]

約数ペア:

[(1, 28955556), (2, 14477778), (3, 9651852), (4, 7238889), (6, 4825926), (7, 4136508), (9, 3217284), (12, 2412963), (14, 2068254), (17, 1703268), (18, 1608642), (21, 1378836), (27, 1072428), (28, 1034127), (34, 851634), (36, 804321), (42, 689418), (51, 567756), (54, 536214), (63, 459612), (68, 425817), (81, 357476), (84, 344709), (102, 283878), (108, 268107), (119, 243324), (126, 229806), (153, 189252), (162, 178738), (189, 153204), (204, 141939), (238, 121662), (252, 114903), (306, 94626), (324, 89369), (357, 81108), (378, 76602), (459, 63084), (476, 60831), (567, 51068), (612, 47313), (714, 40554), (751, 38556), (756, 38301), (918, 31542), (1071, 27036), (1134, 25534), (1377, 21028), (1428, 20277), (1502, 19278), (1836, 15771), (2142, 13518), (2253, 12852), (2268, 12767), (2754, 10514), (3004, 9639), (3213, 9012), (4284, 6759), (4506, 6426), (5257, 5508)]