20053072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{421}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 42124040

約数和(自身を除く): 22070968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 229, 421, 458, 842, 916, 1684, 1832, 2977, 3368, 3664, 5473, 5954, 6736, 10946, 11908, 21892, 23816, 43784, 47632, 87568, 96409, 192818, 385636, 771272, 1253317, 1542544, 2506634, 5013268, 10026536, 20053072]

約数ペア:

[(1, 20053072), (2, 10026536), (4, 5013268), (8, 2506634), (13, 1542544), (16, 1253317), (26, 771272), (52, 385636), (104, 192818), (208, 96409), (229, 87568), (421, 47632), (458, 43784), (842, 23816), (916, 21892), (1684, 11908), (1832, 10946), (2977, 6736), (3368, 5954), (3664, 5473)]