28343910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:1989

約数の個数: 64

約数和(自身を含む): 78879744

約数和(自身を除く): 50535834

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 71, 105, 142, 210, 213, 355, 426, 497, 710, 994, 1065, 1491, 1901, 2130, 2485, 2982, 3802, 4970, 5703, 7455, 9505, 11406, 13307, 14910, 19010, 26614, 28515, 39921, 57030, 66535, 79842, 133070, 134971, 199605, 269942, 399210, 404913, 674855, 809826, 944797, 1349710, 1889594, 2024565, 2834391, 4049130, 4723985, 5668782, 9447970, 14171955, 28343910]

約数ペア:

[(1, 28343910), (2, 14171955), (3, 9447970), (5, 5668782), (6, 4723985), (7, 4049130), (10, 2834391), (14, 2024565), (15, 1889594), (21, 1349710), (30, 944797), (35, 809826), (42, 674855), (70, 404913), (71, 399210), (105, 269942), (142, 199605), (210, 134971), (213, 133070), (355, 79842), (426, 66535), (497, 57030), (710, 39921), (994, 28515), (1065, 26614), (1491, 19010), (1901, 14910), (2130, 13307), (2485, 11406), (2982, 9505), (3802, 7455), (4970, 5703)]