1604720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1543}}^1$

素因数の和:1569

約数の個数: 40

約数和(自身を含む): 4020576

約数和(自身を除く): 2415856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1543, 3086, 6172, 7715, 12344, 15430, 20059, 24688, 30860, 40118, 61720, 80236, 100295, 123440, 160472, 200590, 320944, 401180, 802360, 1604720]

約数ペア:

[(1, 1604720), (2, 802360), (4, 401180), (5, 320944), (8, 200590), (10, 160472), (13, 123440), (16, 100295), (20, 80236), (26, 61720), (40, 40118), (52, 30860), (65, 24688), (80, 20059), (104, 15430), (130, 12344), (208, 7715), (260, 6172), (520, 3086), (1040, 1543)]