20029472

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 41497344

約数和(自身を除く): 21467872

約数列:

[1, 2, 4, 8, 16, 31, 32, 61, 62, 122, 124, 244, 248, 331, 488, 496, 662, 976, 992, 1324, 1891, 1952, 2648, 3782, 5296, 7564, 10261, 10592, 15128, 20191, 20522, 30256, 40382, 41044, 60512, 80764, 82088, 161528, 164176, 323056, 328352, 625921, 646112, 1251842, 2503684, 5007368, 10014736, 20029472]

約数ペア:

[(1, 20029472), (2, 10014736), (4, 5007368), (8, 2503684), (16, 1251842), (31, 646112), (32, 625921), (61, 328352), (62, 323056), (122, 164176), (124, 161528), (244, 82088), (248, 80764), (331, 60512), (488, 41044), (496, 40382), (662, 30256), (976, 20522), (992, 20191), (1324, 15128), (1891, 10592), (1952, 10261), (2648, 7564), (3782, 5296)]