28553360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 73602432

約数和(自身を除く): 45049072

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 457, 568, 710, 781, 880, 914, 1136, 1420, 1562, 1828, 2285, 2840, 3124, 3656, 3905, 4570, 5027, 5680, 6248, 7312, 7810, 9140, 10054, 12496, 15620, 18280, 20108, 25135, 31240, 32447, 36560, 40216, 50270, 62480, 64894, 80432, 100540, 129788, 162235, 201080, 259576, 324470, 356917, 402160, 519152, 648940, 713834, 1297880, 1427668, 1784585, 2595760, 2855336, 3569170, 5710672, 7138340, 14276680, 28553360]

約数ペア:

[(1, 28553360), (2, 14276680), (4, 7138340), (5, 5710672), (8, 3569170), (10, 2855336), (11, 2595760), (16, 1784585), (20, 1427668), (22, 1297880), (40, 713834), (44, 648940), (55, 519152), (71, 402160), (80, 356917), (88, 324470), (110, 259576), (142, 201080), (176, 162235), (220, 129788), (284, 100540), (355, 80432), (440, 64894), (457, 62480), (568, 50270), (710, 40216), (781, 36560), (880, 32447), (914, 31240), (1136, 25135), (1420, 20108), (1562, 18280), (1828, 15620), (2285, 12496), (2840, 10054), (3124, 9140), (3656, 7810), (3905, 7312), (4570, 6248), (5027, 5680)]