261428778

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{12553}}^1$

素因数の和:12663

約数の個数: 48

約数和(自身を含む): 616903560

約数和(自身を除く): 355474782

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 89, 117, 178, 234, 267, 534, 801, 1157, 1602, 2314, 3471, 6942, 10413, 12553, 20826, 25106, 37659, 75318, 112977, 163189, 225954, 326378, 489567, 979134, 1117217, 1468701, 2234434, 2937402, 3351651, 6703302, 10054953, 14523821, 20109906, 29047642, 43571463, 87142926, 130714389, 261428778]

約数ペア:

[(1, 261428778), (2, 130714389), (3, 87142926), (6, 43571463), (9, 29047642), (13, 20109906), (18, 14523821), (26, 10054953), (39, 6703302), (78, 3351651), (89, 2937402), (117, 2234434), (178, 1468701), (234, 1117217), (267, 979134), (534, 489567), (801, 326378), (1157, 225954), (1602, 163189), (2314, 112977), (3471, 75318), (6942, 37659), (10413, 25106), (12553, 20826)]