28954120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55681}}^1$

素因数の和:55705

約数の個数: 32

約数和(自身を含む): 70159320

約数和(自身を除く): 41205200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55681, 111362, 222724, 278405, 445448, 556810, 723853, 1113620, 1447706, 2227240, 2895412, 3619265, 5790824, 7238530, 14477060, 28954120]

約数ペア:

[(1, 28954120), (2, 14477060), (4, 7238530), (5, 5790824), (8, 3619265), (10, 2895412), (13, 2227240), (20, 1447706), (26, 1113620), (40, 723853), (52, 556810), (65, 445448), (104, 278405), (130, 222724), (260, 111362), (520, 55681)]