2019986505

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:940

約数の個数: 80

約数和(自身を含む): 3758565888

約数和(自身を除く): 1738579383

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 251, 279, 405, 465, 641, 753, 837, 1255, 1395, 1923, 2259, 2511, 3205, 3765, 4185, 5769, 6777, 7781, 9615, 11295, 12555, 17307, 19871, 20331, 23343, 28845, 33885, 38905, 51921, 59613, 70029, 86535, 99355, 101655, 116715, 160891, 178839, 210087, 259605, 298065, 350145, 482673, 536517, 630261, 804455, 894195, 1050435, 1448019, 1609551, 2413365, 2682585, 3151305, 4344057, 4987621, 7240095, 8047755, 13032171, 14962863, 21720285, 24938105, 44888589, 65160855, 74814315, 134665767, 224442945, 403997301, 673328835, 2019986505]

約数ペア:

[(1, 2019986505), (3, 673328835), (5, 403997301), (9, 224442945), (15, 134665767), (27, 74814315), (31, 65160855), (45, 44888589), (81, 24938105), (93, 21720285), (135, 14962863), (155, 13032171), (251, 8047755), (279, 7240095), (405, 4987621), (465, 4344057), (641, 3151305), (753, 2682585), (837, 2413365), (1255, 1609551), (1395, 1448019), (1923, 1050435), (2259, 894195), (2511, 804455), (3205, 630261), (3765, 536517), (4185, 482673), (5769, 350145), (6777, 298065), (7781, 259605), (9615, 210087), (11295, 178839), (12555, 160891), (17307, 116715), (19871, 101655), (20331, 99355), (23343, 86535), (28845, 70029), (33885, 59613), (38905, 51921)]