245836240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{236381}}^1$

素因数の和:236407

約数の個数: 40

約数和(自身を含む): 615538728

約数和(自身を除く): 369702488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 236381, 472762, 945524, 1181905, 1891048, 2363810, 3072953, 3782096, 4727620, 6145906, 9455240, 12291812, 15364765, 18910480, 24583624, 30729530, 49167248, 61459060, 122918120, 245836240]

約数ペア:

[(1, 245836240), (2, 122918120), (4, 61459060), (5, 49167248), (8, 30729530), (10, 24583624), (13, 18910480), (16, 15364765), (20, 12291812), (26, 9455240), (40, 6145906), (52, 4727620), (65, 3782096), (80, 3072953), (104, 2363810), (130, 1891048), (208, 1181905), (260, 945524), (520, 472762), (1040, 236381)]