28863640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1181}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 71487360

約数和(自身を除く): 42623720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 940, 1181, 1222, 1880, 2362, 2444, 3055, 4724, 4888, 5905, 6110, 9448, 11810, 12220, 15353, 23620, 24440, 30706, 47240, 55507, 61412, 76765, 111014, 122824, 153530, 222028, 277535, 307060, 444056, 555070, 614120, 721591, 1110140, 1443182, 2220280, 2886364, 3607955, 5772728, 7215910, 14431820, 28863640]

約数ペア:

[(1, 28863640), (2, 14431820), (4, 7215910), (5, 5772728), (8, 3607955), (10, 2886364), (13, 2220280), (20, 1443182), (26, 1110140), (40, 721591), (47, 614120), (52, 555070), (65, 444056), (94, 307060), (104, 277535), (130, 222028), (188, 153530), (235, 122824), (260, 111014), (376, 76765), (470, 61412), (520, 55507), (611, 47240), (940, 30706), (1181, 24440), (1222, 23620), (1880, 15353), (2362, 12220), (2444, 11810), (3055, 9448), (4724, 6110), (4888, 5905)]