218564980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{8101}}^1$

素因数の和:8200

約数の個数: 48

約数和(自身を含む): 490008960

約数和(自身を除く): 271443980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 8101, 13490, 16202, 26980, 32404, 40505, 81010, 153919, 162020, 307838, 575171, 615676, 769595, 1150342, 1539190, 2300684, 2875855, 3078380, 5751710, 10928249, 11503420, 21856498, 43712996, 54641245, 109282490, 218564980]

約数ペア:

[(1, 218564980), (2, 109282490), (4, 54641245), (5, 43712996), (10, 21856498), (19, 11503420), (20, 10928249), (38, 5751710), (71, 3078380), (76, 2875855), (95, 2300684), (142, 1539190), (190, 1150342), (284, 769595), (355, 615676), (380, 575171), (710, 307838), (1349, 162020), (1420, 153919), (2698, 81010), (5396, 40505), (6745, 32404), (8101, 26980), (13490, 16202)]