80905920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1187}}^1$

素因数の和:1278

約数の個数: 112

約数和(自身を含む): 260713728

約数和(自身を除く): 179807808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 71, 80, 96, 120, 142, 160, 192, 213, 240, 284, 320, 355, 426, 480, 568, 710, 852, 960, 1065, 1136, 1187, 1420, 1704, 2130, 2272, 2374, 2840, 3408, 3561, 4260, 4544, 4748, 5680, 5935, 6816, 7122, 8520, 9496, 11360, 11870, 13632, 14244, 17040, 17805, 18992, 22720, 23740, 28488, 34080, 35610, 37984, 47480, 56976, 68160, 71220, 75968, 84277, 94960, 113952, 142440, 168554, 189920, 227904, 252831, 284880, 337108, 379840, 421385, 505662, 569760, 674216, 842770, 1011324, 1139520, 1264155, 1348432, 1685540, 2022648, 2528310, 2696864, 3371080, 4045296, 5056620, 5393728, 6742160, 8090592, 10113240, 13484320, 16181184, 20226480, 26968640, 40452960, 80905920]

約数ペア:

[(1, 80905920), (2, 40452960), (3, 26968640), (4, 20226480), (5, 16181184), (6, 13484320), (8, 10113240), (10, 8090592), (12, 6742160), (15, 5393728), (16, 5056620), (20, 4045296), (24, 3371080), (30, 2696864), (32, 2528310), (40, 2022648), (48, 1685540), (60, 1348432), (64, 1264155), (71, 1139520), (80, 1011324), (96, 842770), (120, 674216), (142, 569760), (160, 505662), (192, 421385), (213, 379840), (240, 337108), (284, 284880), (320, 252831), (355, 227904), (426, 189920), (480, 168554), (568, 142440), (710, 113952), (852, 94960), (960, 84277), (1065, 75968), (1136, 71220), (1187, 68160), (1420, 56976), (1704, 47480), (2130, 37984), (2272, 35610), (2374, 34080), (2840, 28488), (3408, 23740), (3561, 22720), (4260, 18992), (4544, 17805), (4748, 17040), (5680, 14244), (5935, 13632), (6816, 11870), (7122, 11360), (8520, 9496)]