1320551440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{55207}}^1$

素因数の和:55256

約数の個数: 80

約数和(自身を含む): 3450279168

約数和(自身を除く): 2129727728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2392, 2990, 4784, 5980, 11960, 23920, 55207, 110414, 220828, 276035, 441656, 552070, 717691, 883312, 1104140, 1269761, 1435382, 2208280, 2539522, 2870764, 3588455, 4416560, 5079044, 5741528, 6348805, 7176910, 10158088, 11483056, 12697610, 14353820, 16506893, 20316176, 25395220, 28707640, 33013786, 50790440, 57415280, 66027572, 82534465, 101580880, 132055144, 165068930, 264110288, 330137860, 660275720, 1320551440]

約数ペア:

[(1, 1320551440), (2, 660275720), (4, 330137860), (5, 264110288), (8, 165068930), (10, 132055144), (13, 101580880), (16, 82534465), (20, 66027572), (23, 57415280), (26, 50790440), (40, 33013786), (46, 28707640), (52, 25395220), (65, 20316176), (80, 16506893), (92, 14353820), (104, 12697610), (115, 11483056), (130, 10158088), (184, 7176910), (208, 6348805), (230, 5741528), (260, 5079044), (299, 4416560), (368, 3588455), (460, 2870764), (520, 2539522), (598, 2208280), (920, 1435382), (1040, 1269761), (1196, 1104140), (1495, 883312), (1840, 717691), (2392, 552070), (2990, 441656), (4784, 276035), (5980, 220828), (11960, 110414), (23920, 55207)]