80971524

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 210712320

約数和(自身を除く): 129740796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 79, 142, 158, 213, 237, 284, 316, 401, 426, 474, 639, 711, 802, 852, 948, 1203, 1278, 1422, 1604, 2406, 2556, 2844, 3609, 4812, 5609, 7218, 11218, 14436, 16827, 22436, 28471, 31679, 33654, 50481, 56942, 63358, 67308, 85413, 95037, 100962, 113884, 126716, 170826, 190074, 201924, 256239, 285111, 341652, 380148, 512478, 570222, 1024956, 1140444, 2249209, 4498418, 6747627, 8996836, 13495254, 20242881, 26990508, 40485762, 80971524]

約数ペア:

[(1, 80971524), (2, 40485762), (3, 26990508), (4, 20242881), (6, 13495254), (9, 8996836), (12, 6747627), (18, 4498418), (36, 2249209), (71, 1140444), (79, 1024956), (142, 570222), (158, 512478), (213, 380148), (237, 341652), (284, 285111), (316, 256239), (401, 201924), (426, 190074), (474, 170826), (639, 126716), (711, 113884), (802, 100962), (852, 95037), (948, 85413), (1203, 67308), (1278, 63358), (1422, 56942), (1604, 50481), (2406, 33654), (2556, 31679), (2844, 28471), (3609, 22436), (4812, 16827), (5609, 14436), (7218, 11218)]