661490648

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{29311}}^1$

素因数の和:29368

約数の個数: 64

約数和(自身を含む): 1575813120

約数和(自身を除く): 914322472

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 1612, 1736, 2821, 3224, 5642, 11284, 22568, 29311, 58622, 117244, 205177, 234488, 381043, 410354, 762086, 820708, 908641, 1524172, 1641416, 1817282, 2667301, 3048344, 3634564, 5334602, 6360487, 7269128, 10669204, 11812333, 12720974, 21338408, 23624666, 25441948, 47249332, 50883896, 82686331, 94498664, 165372662, 330745324, 661490648]

約数ペア:

[(1, 661490648), (2, 330745324), (4, 165372662), (7, 94498664), (8, 82686331), (13, 50883896), (14, 47249332), (26, 25441948), (28, 23624666), (31, 21338408), (52, 12720974), (56, 11812333), (62, 10669204), (91, 7269128), (104, 6360487), (124, 5334602), (182, 3634564), (217, 3048344), (248, 2667301), (364, 1817282), (403, 1641416), (434, 1524172), (728, 908641), (806, 820708), (868, 762086), (1612, 410354), (1736, 381043), (2821, 234488), (3224, 205177), (5642, 117244), (11284, 58622), (22568, 29311)]