90540580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{727}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 205470720

約数和(自身を除く): 114930140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 479, 727, 958, 1454, 1916, 2395, 2908, 3635, 4790, 6227, 7270, 9451, 9580, 12454, 14540, 18902, 24908, 31135, 37804, 47255, 62270, 94510, 124540, 189020, 348233, 696466, 1392932, 1741165, 3482330, 4527029, 6964660, 9054058, 18108116, 22635145, 45270290, 90540580]

約数ペア:

[(1, 90540580), (2, 45270290), (4, 22635145), (5, 18108116), (10, 9054058), (13, 6964660), (20, 4527029), (26, 3482330), (52, 1741165), (65, 1392932), (130, 696466), (260, 348233), (479, 189020), (727, 124540), (958, 94510), (1454, 62270), (1916, 47255), (2395, 37804), (2908, 31135), (3635, 24908), (4790, 18902), (6227, 14540), (7270, 12454), (9451, 9580)]