347804920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{142543}}^1$

素因数の和:142615

約数の個数: 32

約数和(自身を含む): 795395520

約数和(自身を除く): 447590600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 142543, 285086, 570172, 712715, 1140344, 1425430, 2850860, 5701720, 8695123, 17390246, 34780492, 43475615, 69560984, 86951230, 173902460, 347804920]

約数ペア:

[(1, 347804920), (2, 173902460), (4, 86951230), (5, 69560984), (8, 43475615), (10, 34780492), (20, 17390246), (40, 8695123), (61, 5701720), (122, 2850860), (244, 1425430), (305, 1140344), (488, 712715), (610, 570172), (1220, 285086), (2440, 142543)]