20303480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{761}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 49377600

約数和(自身を除く): 29074120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 92, 115, 116, 145, 184, 230, 232, 290, 460, 580, 667, 761, 920, 1160, 1334, 1522, 2668, 3044, 3335, 3805, 5336, 6088, 6670, 7610, 13340, 15220, 17503, 22069, 26680, 30440, 35006, 44138, 70012, 87515, 88276, 110345, 140024, 175030, 176552, 220690, 350060, 441380, 507587, 700120, 882760, 1015174, 2030348, 2537935, 4060696, 5075870, 10151740, 20303480]

約数ペア:

[(1, 20303480), (2, 10151740), (4, 5075870), (5, 4060696), (8, 2537935), (10, 2030348), (20, 1015174), (23, 882760), (29, 700120), (40, 507587), (46, 441380), (58, 350060), (92, 220690), (115, 176552), (116, 175030), (145, 140024), (184, 110345), (230, 88276), (232, 87515), (290, 70012), (460, 44138), (580, 35006), (667, 30440), (761, 26680), (920, 22069), (1160, 17503), (1334, 15220), (1522, 13340), (2668, 7610), (3044, 6670), (3335, 6088), (3805, 5336)]