20687564950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1\times {\mathrm{1291}}^1$

素因数の和:1682

約数の個数: 96

約数和(自身を含む): 42088243680

約数和(自身を除く): 21400678730

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 130, 178, 277, 325, 445, 554, 650, 890, 1157, 1291, 1385, 2225, 2314, 2582, 2770, 3601, 4450, 5785, 6455, 6925, 7202, 11570, 12910, 13850, 16783, 18005, 24653, 28925, 32275, 33566, 36010, 49306, 57850, 64550, 83915, 90025, 114899, 123265, 167830, 180050, 229798, 246530, 320489, 357607, 419575, 574495, 616325, 640978, 715214, 839150, 1148990, 1232650, 1493687, 1602445, 1788035, 2872475, 2987374, 3204890, 3576070, 4648891, 5744950, 7468435, 8012225, 8940175, 9297782, 14936870, 16024450, 17880350, 23244455, 31827023, 37342175, 46488910, 63654046, 74684350, 116222275, 159135115, 232444550, 318270230, 413751299, 795675575, 827502598, 1591351150, 2068756495, 4137512990, 10343782475, 20687564950]

約数ペア:

[(1, 20687564950), (2, 10343782475), (5, 4137512990), (10, 2068756495), (13, 1591351150), (25, 827502598), (26, 795675575), (50, 413751299), (65, 318270230), (89, 232444550), (130, 159135115), (178, 116222275), (277, 74684350), (325, 63654046), (445, 46488910), (554, 37342175), (650, 31827023), (890, 23244455), (1157, 17880350), (1291, 16024450), (1385, 14936870), (2225, 9297782), (2314, 8940175), (2582, 8012225), (2770, 7468435), (3601, 5744950), (4450, 4648891), (5785, 3576070), (6455, 3204890), (6925, 2987374), (7202, 2872475), (11570, 1788035), (12910, 1602445), (13850, 1493687), (16783, 1232650), (18005, 1148990), (24653, 839150), (28925, 715214), (32275, 640978), (33566, 616325), (36010, 574495), (49306, 419575), (57850, 357607), (64550, 320489), (83915, 246530), (90025, 229798), (114899, 180050), (123265, 167830)]