20795815943

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 25778995200

約数和(自身を除く): 4983179257

約数列:

[1, 7, 41, 47, 49, 73, 287, 329, 343, 431, 511, 1927, 2009, 2303, 2993, 3017, 3431, 3577, 13489, 14063, 16121, 17671, 20257, 20951, 21119, 24017, 25039, 31463, 94423, 123697, 140671, 141799, 146657, 147833, 168119, 220241, 660961, 830537, 865879, 984697, 992593, 1026599, 1176833, 1289983, 1478761, 1541687, 5813759, 6061153, 6892879, 6948151, 9029881, 10351327, 10791809, 40696313, 48250153, 60629201, 63209167, 72459289, 284874191, 424404407, 442464169, 507215023, 2970830849, 20795815943]

約数ペア:

[(1, 20795815943), (7, 2970830849), (41, 507215023), (47, 442464169), (49, 424404407), (73, 284874191), (287, 72459289), (329, 63209167), (343, 60629201), (431, 48250153), (511, 40696313), (1927, 10791809), (2009, 10351327), (2303, 9029881), (2993, 6948151), (3017, 6892879), (3431, 6061153), (3577, 5813759), (13489, 1541687), (14063, 1478761), (16121, 1289983), (17671, 1176833), (20257, 1026599), (20951, 992593), (21119, 984697), (24017, 865879), (25039, 830537), (31463, 660961), (94423, 220241), (123697, 168119), (140671, 147833), (141799, 146657)]