20939632

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 49457152

約数和(自身を除く): 28517520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 37, 56, 62, 74, 112, 124, 148, 163, 217, 248, 259, 296, 326, 434, 496, 518, 592, 652, 868, 1036, 1141, 1147, 1304, 1736, 2072, 2282, 2294, 2608, 3472, 4144, 4564, 4588, 5053, 6031, 8029, 9128, 9176, 10106, 12062, 16058, 18256, 18352, 20212, 24124, 32116, 35371, 40424, 42217, 48248, 64232, 70742, 80848, 84434, 96496, 128464, 141484, 168868, 186961, 282968, 337736, 373922, 565936, 675472, 747844, 1308727, 1495688, 2617454, 2991376, 5234908, 10469816, 20939632]

約数ペア:

[(1, 20939632), (2, 10469816), (4, 5234908), (7, 2991376), (8, 2617454), (14, 1495688), (16, 1308727), (28, 747844), (31, 675472), (37, 565936), (56, 373922), (62, 337736), (74, 282968), (112, 186961), (124, 168868), (148, 141484), (163, 128464), (217, 96496), (248, 84434), (259, 80848), (296, 70742), (326, 64232), (434, 48248), (496, 42217), (518, 40424), (592, 35371), (652, 32116), (868, 24124), (1036, 20212), (1141, 18352), (1147, 18256), (1304, 16058), (1736, 12062), (2072, 10106), (2282, 9176), (2294, 9128), (2608, 8029), (3472, 6031), (4144, 5053), (4564, 4588)]