20163550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{601}}^1$

素因数の和:685

約数の個数: 48

約数和(自身を含む): 41653584

約数和(自身を除く): 21490034

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 61, 110, 122, 275, 305, 550, 601, 610, 671, 1202, 1342, 1525, 3005, 3050, 3355, 6010, 6611, 6710, 13222, 15025, 16775, 30050, 33055, 33550, 36661, 66110, 73322, 165275, 183305, 330550, 366610, 403271, 806542, 916525, 1833050, 2016355, 4032710, 10081775, 20163550]

約数ペア:

[(1, 20163550), (2, 10081775), (5, 4032710), (10, 2016355), (11, 1833050), (22, 916525), (25, 806542), (50, 403271), (55, 366610), (61, 330550), (110, 183305), (122, 165275), (275, 73322), (305, 66110), (550, 36661), (601, 33550), (610, 33055), (671, 30050), (1202, 16775), (1342, 15025), (1525, 13222), (3005, 6710), (3050, 6611), (3355, 6010)]