38349940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 82736640

約数和(自身を除く): 44386700

約数列:

[1, 2, 4, 5, 10, 20, 71, 113, 142, 226, 239, 284, 355, 452, 478, 565, 710, 956, 1130, 1195, 1420, 2260, 2390, 4780, 8023, 16046, 16969, 27007, 32092, 33938, 40115, 54014, 67876, 80230, 84845, 108028, 135035, 160460, 169690, 270070, 339380, 540140, 1917497, 3834994, 7669988, 9587485, 19174970, 38349940]

約数ペア:

[(1, 38349940), (2, 19174970), (4, 9587485), (5, 7669988), (10, 3834994), (20, 1917497), (71, 540140), (113, 339380), (142, 270070), (226, 169690), (239, 160460), (284, 135035), (355, 108028), (452, 84845), (478, 80230), (565, 67876), (710, 54014), (956, 40115), (1130, 33938), (1195, 32092), (1420, 27007), (2260, 16969), (2390, 16046), (4780, 8023)]