172198780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{38959}}^1$

素因数の和:38998

約数の個数: 48

約数和(自身を含む): 412352640

約数和(自身を除く): 240153860

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, 38959, 77918, 155836, 194795, 389590, 506467, 662303, 779180, 1012934, 1324606, 2025868, 2532335, 2649212, 3311515, 5064670, 6623030, 8609939, 10129340, 13246060, 17219878, 34439756, 43049695, 86099390, 172198780]

約数ペア:

[(1, 172198780), (2, 86099390), (4, 43049695), (5, 34439756), (10, 17219878), (13, 13246060), (17, 10129340), (20, 8609939), (26, 6623030), (34, 5064670), (52, 3311515), (65, 2649212), (68, 2532335), (85, 2025868), (130, 1324606), (170, 1012934), (221, 779180), (260, 662303), (340, 506467), (442, 389590), (884, 194795), (1105, 155836), (2210, 77918), (4420, 38959)]