80139020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18131}}^1$

素因数の和:18170

約数の個数: 48

約数和(自身を含む): 191909088

約数和(自身を除く): 111770068

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 18131, 36262, 72524, 90655, 181310, 235703, 308227, 362620, 471406, 616454, 942812, 1178515, 1232908, 1541135, 2357030, 3082270, 4006951, 4714060, 6164540, 8013902, 16027804, 20034755, 40069510, 80139020]

約数ペア:

[(1, 80139020), (2, 40069510), (4, 20034755), (5, 16027804), (10, 8013902), (13, 6164540), (17, 4714060), (20, 4006951), (26, 3082270), (34, 2357030), (52, 1541135), (65, 1232908), (68, 1178515), (85, 942812), (130, 616454), (170, 471406), (221, 362620), (260, 308227), (340, 235703), (442, 181310), (884, 90655), (1105, 72524), (2210, 36262), (4420, 18131)]