6448220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 14515200

約数和(自身を除く): 8066980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 239, 284, 355, 380, 478, 710, 956, 1195, 1349, 1420, 2390, 2698, 4541, 4780, 5396, 6745, 9082, 13490, 16969, 18164, 22705, 26980, 33938, 45410, 67876, 84845, 90820, 169690, 322411, 339380, 644822, 1289644, 1612055, 3224110, 6448220]

約数ペア:

[(1, 6448220), (2, 3224110), (4, 1612055), (5, 1289644), (10, 644822), (19, 339380), (20, 322411), (38, 169690), (71, 90820), (76, 84845), (95, 67876), (142, 45410), (190, 33938), (239, 26980), (284, 22705), (355, 18164), (380, 16969), (478, 13490), (710, 9082), (956, 6745), (1195, 5396), (1349, 4780), (1420, 4541), (2390, 2698)]