20070486875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 27298386720

約数和(自身を除く): 7227899845

約数列:

[1, 5, 17, 25, 61, 85, 125, 173, 179, 305, 425, 625, 865, 895, 1037, 1525, 2125, 2941, 3043, 4325, 4475, 5185, 7625, 10553, 10625, 10919, 14705, 15215, 21625, 22375, 25925, 30967, 38125, 52765, 54595, 73525, 76075, 108125, 111875, 129625, 154835, 179401, 185623, 263825, 272975, 367625, 380375, 526439, 648125, 774175, 897005, 928115, 1319125, 1364875, 1838125, 1888987, 1901875, 2632195, 3870875, 4485025, 4640575, 6595625, 6824375, 9444935, 13160975, 19354375, 22425125, 23202875, 32112779, 47224675, 65804875, 112125625, 116014375, 160563895, 236123375, 329024375, 802819475, 1180616875, 4014097375, 20070486875]

約数ペア:

[(1, 20070486875), (5, 4014097375), (17, 1180616875), (25, 802819475), (61, 329024375), (85, 236123375), (125, 160563895), (173, 116014375), (179, 112125625), (305, 65804875), (425, 47224675), (625, 32112779), (865, 23202875), (895, 22425125), (1037, 19354375), (1525, 13160975), (2125, 9444935), (2941, 6824375), (3043, 6595625), (4325, 4640575), (4475, 4485025), (5185, 3870875), (7625, 2632195), (10553, 1901875), (10625, 1888987), (10919, 1838125), (14705, 1364875), (15215, 1319125), (21625, 928115), (22375, 897005), (25925, 774175), (30967, 648125), (38125, 526439), (52765, 380375), (54595, 367625), (73525, 272975), (76075, 263825), (108125, 185623), (111875, 179401), (129625, 154835)]