155552020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{4567}}^1$

素因数の和:4720

約数の個数: 48

約数和(自身を含む): 354549888

約数和(自身を除く): 198997868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2620, 3406, 4567, 6812, 8515, 9134, 17030, 18268, 22835, 34060, 45670, 59371, 91340, 118742, 237484, 296855, 593710, 598277, 1187420, 1196554, 2393108, 2991385, 5982770, 7777601, 11965540, 15555202, 31110404, 38888005, 77776010, 155552020]

約数ペア:

[(1, 155552020), (2, 77776010), (4, 38888005), (5, 31110404), (10, 15555202), (13, 11965540), (20, 7777601), (26, 5982770), (52, 2991385), (65, 2393108), (130, 1196554), (131, 1187420), (260, 598277), (262, 593710), (524, 296855), (655, 237484), (1310, 118742), (1703, 91340), (2620, 59371), (3406, 45670), (4567, 34060), (6812, 22835), (8515, 18268), (9134, 17030)]