131207960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{252323}}^1$

素因数の和:252347

約数の個数: 32

約数和(自身を含む): 317928240

約数和(自身を除く): 186720280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 252323, 504646, 1009292, 1261615, 2018584, 2523230, 3280199, 5046460, 6560398, 10092920, 13120796, 16400995, 26241592, 32801990, 65603980, 131207960]

約数ペア:

[(1, 131207960), (2, 65603980), (4, 32801990), (5, 26241592), (8, 16400995), (10, 13120796), (13, 10092920), (20, 6560398), (26, 5046460), (40, 3280199), (52, 2523230), (65, 2018584), (104, 1261615), (130, 1009292), (260, 504646), (520, 252323)]