18956025

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:93

約数の個数: 120

約数和(自身を含む): 41050944

約数和(自身を除く): 22094919

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 27, 33, 37, 45, 55, 69, 75, 81, 99, 111, 115, 135, 165, 185, 207, 225, 253, 275, 297, 333, 345, 405, 407, 495, 555, 575, 621, 675, 759, 825, 851, 891, 925, 999, 1035, 1221, 1265, 1485, 1665, 1725, 1863, 2025, 2035, 2277, 2475, 2553, 2775, 2997, 3105, 3663, 3795, 4255, 4455, 4995, 5175, 6105, 6325, 6831, 7425, 7659, 8325, 9315, 9361, 10175, 10989, 11385, 12765, 14985, 15525, 18315, 18975, 20493, 21275, 22275, 22977, 24975, 28083, 30525, 32967, 34155, 38295, 46575, 46805, 54945, 56925, 63825, 68931, 74925, 84249, 91575, 102465, 114885, 140415, 164835, 170775, 191475, 234025, 252747, 274725, 344655, 421245, 512325, 574425, 702075, 758241, 824175, 1263735, 1723275, 2106225, 3791205, 6318675, 18956025]

約数ペア:

[(1, 18956025), (3, 6318675), (5, 3791205), (9, 2106225), (11, 1723275), (15, 1263735), (23, 824175), (25, 758241), (27, 702075), (33, 574425), (37, 512325), (45, 421245), (55, 344655), (69, 274725), (75, 252747), (81, 234025), (99, 191475), (111, 170775), (115, 164835), (135, 140415), (165, 114885), (185, 102465), (207, 91575), (225, 84249), (253, 74925), (275, 68931), (297, 63825), (333, 56925), (345, 54945), (405, 46805), (407, 46575), (495, 38295), (555, 34155), (575, 32967), (621, 30525), (675, 28083), (759, 24975), (825, 22977), (851, 22275), (891, 21275), (925, 20493), (999, 18975), (1035, 18315), (1221, 15525), (1265, 14985), (1485, 12765), (1665, 11385), (1725, 10989), (1863, 10175), (2025, 9361), (2035, 9315), (2277, 8325), (2475, 7659), (2553, 7425), (2775, 6831), (2997, 6325), (3105, 6105), (3663, 5175), (3795, 4995), (4255, 4455)]