80064400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:293

約数の個数: 120

約数和(自身を含む): 210689640

約数和(自身を除く): 130625240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 89, 100, 104, 130, 173, 178, 200, 208, 260, 325, 346, 356, 400, 445, 520, 650, 692, 712, 865, 890, 1040, 1157, 1300, 1384, 1424, 1730, 1780, 2225, 2249, 2314, 2600, 2768, 3460, 3560, 4325, 4450, 4498, 4628, 5200, 5785, 6920, 7120, 8650, 8900, 8996, 9256, 11245, 11570, 13840, 15397, 17300, 17800, 17992, 18512, 22490, 23140, 28925, 30794, 34600, 35600, 35984, 44980, 46280, 56225, 57850, 61588, 69200, 76985, 89960, 92560, 112450, 115700, 123176, 153970, 179920, 200161, 224900, 231400, 246352, 307940, 384925, 400322, 449800, 462800, 615880, 769850, 800644, 899600, 1000805, 1231760, 1539700, 1601288, 2001610, 3079400, 3202576, 4003220, 5004025, 6158800, 8006440, 10008050, 16012880, 20016100, 40032200, 80064400]

約数ペア:

[(1, 80064400), (2, 40032200), (4, 20016100), (5, 16012880), (8, 10008050), (10, 8006440), (13, 6158800), (16, 5004025), (20, 4003220), (25, 3202576), (26, 3079400), (40, 2001610), (50, 1601288), (52, 1539700), (65, 1231760), (80, 1000805), (89, 899600), (100, 800644), (104, 769850), (130, 615880), (173, 462800), (178, 449800), (200, 400322), (208, 384925), (260, 307940), (325, 246352), (346, 231400), (356, 224900), (400, 200161), (445, 179920), (520, 153970), (650, 123176), (692, 115700), (712, 112450), (865, 92560), (890, 89960), (1040, 76985), (1157, 69200), (1300, 61588), (1384, 57850), (1424, 56225), (1730, 46280), (1780, 44980), (2225, 35984), (2249, 35600), (2314, 34600), (2600, 30794), (2768, 28925), (3460, 23140), (3560, 22490), (4325, 18512), (4450, 17992), (4498, 17800), (4628, 17300), (5200, 15397), (5785, 13840), (6920, 11570), (7120, 11245), (8650, 9256), (8900, 8996)]