20199712

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{823}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 43606080

約数和(自身を除く): 23406368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 104, 118, 208, 236, 416, 472, 767, 823, 944, 1534, 1646, 1888, 3068, 3292, 6136, 6584, 10699, 12272, 13168, 21398, 24544, 26336, 42796, 48557, 85592, 97114, 171184, 194228, 342368, 388456, 631241, 776912, 1262482, 1553824, 2524964, 5049928, 10099856, 20199712]

約数ペア:

[(1, 20199712), (2, 10099856), (4, 5049928), (8, 2524964), (13, 1553824), (16, 1262482), (26, 776912), (32, 631241), (52, 388456), (59, 342368), (104, 194228), (118, 171184), (208, 97114), (236, 85592), (416, 48557), (472, 42796), (767, 26336), (823, 24544), (944, 21398), (1534, 13168), (1646, 12272), (1888, 10699), (3068, 6584), (3292, 6136)]