20012460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25657}}^1$

素因数の和:25682

約数の個数: 48

約数和(自身を含む): 60347616

約数和(自身を除く): 40335156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25657, 51314, 76971, 102628, 128285, 153942, 256570, 307884, 333541, 384855, 513140, 667082, 769710, 1000623, 1334164, 1539420, 1667705, 2001246, 3335410, 4002492, 5003115, 6670820, 10006230, 20012460]

約数ペア:

[(1, 20012460), (2, 10006230), (3, 6670820), (4, 5003115), (5, 4002492), (6, 3335410), (10, 2001246), (12, 1667705), (13, 1539420), (15, 1334164), (20, 1000623), (26, 769710), (30, 667082), (39, 513140), (52, 384855), (60, 333541), (65, 307884), (78, 256570), (130, 153942), (156, 128285), (195, 102628), (260, 76971), (390, 51314), (780, 25657)]