81160668

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 210633696

約数和(自身を除く): 129473028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 113, 142, 213, 226, 281, 284, 339, 426, 452, 562, 639, 678, 843, 852, 1017, 1124, 1278, 1356, 1686, 2034, 2529, 2556, 3372, 4068, 5058, 8023, 10116, 16046, 19951, 24069, 31753, 32092, 39902, 48138, 59853, 63506, 72207, 79804, 95259, 96276, 119706, 127012, 144414, 179559, 190518, 239412, 285777, 288828, 359118, 381036, 571554, 718236, 1143108, 2254463, 4508926, 6763389, 9017852, 13526778, 20290167, 27053556, 40580334, 81160668]

約数ペア:

[(1, 81160668), (2, 40580334), (3, 27053556), (4, 20290167), (6, 13526778), (9, 9017852), (12, 6763389), (18, 4508926), (36, 2254463), (71, 1143108), (113, 718236), (142, 571554), (213, 381036), (226, 359118), (281, 288828), (284, 285777), (339, 239412), (426, 190518), (452, 179559), (562, 144414), (639, 127012), (678, 119706), (843, 96276), (852, 95259), (1017, 79804), (1124, 72207), (1278, 63506), (1356, 59853), (1686, 48138), (2034, 39902), (2529, 32092), (2556, 31753), (3372, 24069), (4068, 19951), (5058, 16046), (8023, 10116)]