20046194780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{164071}}^1$

素因数の和:164270

約数の個数: 48

約数和(自身を含む): 43413451200

約数和(自身を除く): 23367256420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 149, 164, 205, 298, 410, 596, 745, 820, 1490, 2980, 6109, 12218, 24436, 30545, 61090, 122180, 164071, 328142, 656284, 820355, 1640710, 3281420, 6726911, 13453822, 24446579, 26907644, 33634555, 48893158, 67269110, 97786316, 122232895, 134538220, 244465790, 488931580, 1002309739, 2004619478, 4009238956, 5011548695, 10023097390, 20046194780]

約数ペア:

[(1, 20046194780), (2, 10023097390), (4, 5011548695), (5, 4009238956), (10, 2004619478), (20, 1002309739), (41, 488931580), (82, 244465790), (149, 134538220), (164, 122232895), (205, 97786316), (298, 67269110), (410, 48893158), (596, 33634555), (745, 26907644), (820, 24446579), (1490, 13453822), (2980, 6726911), (6109, 3281420), (12218, 1640710), (24436, 820355), (30545, 656284), (61090, 328142), (122180, 164071)]