20744032

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 42526512

約数和(自身を除く): 21782480

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 97, 163, 164, 194, 326, 328, 388, 652, 656, 776, 1304, 1312, 1552, 2608, 3104, 3977, 5216, 6683, 7954, 13366, 15811, 15908, 26732, 31622, 31816, 53464, 63244, 63632, 106928, 126488, 127264, 213856, 252976, 505952, 648251, 1296502, 2593004, 5186008, 10372016, 20744032]

約数ペア:

[(1, 20744032), (2, 10372016), (4, 5186008), (8, 2593004), (16, 1296502), (32, 648251), (41, 505952), (82, 252976), (97, 213856), (163, 127264), (164, 126488), (194, 106928), (326, 63632), (328, 63244), (388, 53464), (652, 31816), (656, 31622), (776, 26732), (1304, 15908), (1312, 15811), (1552, 13366), (2608, 7954), (3104, 6683), (3977, 5216)]