28404675

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1$

素因数の和:131

約数の個数: 90

約数和(自身を含む): 57660372

約数和(自身を除く): 29255697

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 83, 117, 135, 169, 195, 225, 249, 325, 351, 405, 415, 507, 585, 675, 747, 845, 975, 1053, 1079, 1245, 1521, 1755, 2025, 2075, 2241, 2535, 2925, 3237, 3735, 4225, 4563, 5265, 5395, 6225, 6723, 7605, 8775, 9711, 11205, 12675, 13689, 14027, 16185, 18675, 22815, 26325, 26975, 29133, 33615, 38025, 42081, 48555, 56025, 68445, 70135, 80925, 87399, 114075, 126243, 145665, 168075, 210405, 242775, 342225, 350675, 378729, 436995, 631215, 728325, 1052025, 1136187, 1893645, 2184975, 3156075, 5680935, 9468225, 28404675]

約数ペア:

[(1, 28404675), (3, 9468225), (5, 5680935), (9, 3156075), (13, 2184975), (15, 1893645), (25, 1136187), (27, 1052025), (39, 728325), (45, 631215), (65, 436995), (75, 378729), (81, 350675), (83, 342225), (117, 242775), (135, 210405), (169, 168075), (195, 145665), (225, 126243), (249, 114075), (325, 87399), (351, 80925), (405, 70135), (415, 68445), (507, 56025), (585, 48555), (675, 42081), (747, 38025), (845, 33615), (975, 29133), (1053, 26975), (1079, 26325), (1245, 22815), (1521, 18675), (1755, 16185), (2025, 14027), (2075, 13689), (2241, 12675), (2535, 11205), (2925, 9711), (3237, 8775), (3735, 7605), (4225, 6723), (4563, 6225), (5265, 5395)]