28798120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55381}}^1$

素因数の和:55405

約数の個数: 32

約数和(自身を含む): 69781320

約数和(自身を除く): 40983200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55381, 110762, 221524, 276905, 443048, 553810, 719953, 1107620, 1439906, 2215240, 2879812, 3599765, 5759624, 7199530, 14399060, 28798120]

約数ペア:

[(1, 28798120), (2, 14399060), (4, 7199530), (5, 5759624), (8, 3599765), (10, 2879812), (13, 2215240), (20, 1439906), (26, 1107620), (40, 719953), (52, 553810), (65, 443048), (104, 276905), (130, 221524), (260, 110762), (520, 55381)]