20121894625

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{12161}}^1$

素因数の和:12275

約数の個数: 64

約数和(自身を含む): 30113501184

約数和(自身を除く): 9991606559

約数列:

[1, 5, 7, 25, 31, 35, 61, 125, 155, 175, 217, 305, 427, 775, 875, 1085, 1525, 1891, 2135, 3875, 5425, 7625, 9455, 10675, 12161, 13237, 27125, 47275, 53375, 60805, 66185, 85127, 236375, 304025, 330925, 376991, 425635, 741821, 1520125, 1654625, 1884955, 2128175, 2638937, 3709105, 5192747, 9424775, 10640875, 13194685, 18545525, 22996451, 25963735, 47123875, 65973425, 92727625, 114982255, 129818675, 160975157, 329867125, 574911275, 649093375, 804875785, 2874556375, 4024378925, 20121894625]

約数ペア:

[(1, 20121894625), (5, 4024378925), (7, 2874556375), (25, 804875785), (31, 649093375), (35, 574911275), (61, 329867125), (125, 160975157), (155, 129818675), (175, 114982255), (217, 92727625), (305, 65973425), (427, 47123875), (775, 25963735), (875, 22996451), (1085, 18545525), (1525, 13194685), (1891, 10640875), (2135, 9424775), (3875, 5192747), (5425, 3709105), (7625, 2638937), (9455, 2128175), (10675, 1884955), (12161, 1654625), (13237, 1520125), (27125, 741821), (47275, 425635), (53375, 376991), (60805, 330925), (66185, 304025), (85127, 236375)]