28706895

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 59327424

約数和(自身を除く): 30620529

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 49, 63, 105, 141, 147, 235, 245, 277, 315, 329, 423, 441, 705, 735, 831, 987, 1385, 1645, 1939, 2115, 2205, 2303, 2493, 2961, 4155, 4935, 5817, 6909, 9695, 11515, 12465, 13019, 13573, 14805, 17451, 20727, 29085, 34545, 39057, 40719, 65095, 67865, 87255, 91133, 103635, 117171, 122157, 195285, 203595, 273399, 455665, 585855, 610785, 637931, 820197, 1366995, 1913793, 3189655, 4100985, 5741379, 9568965, 28706895]

約数ペア:

[(1, 28706895), (3, 9568965), (5, 5741379), (7, 4100985), (9, 3189655), (15, 1913793), (21, 1366995), (35, 820197), (45, 637931), (47, 610785), (49, 585855), (63, 455665), (105, 273399), (141, 203595), (147, 195285), (235, 122157), (245, 117171), (277, 103635), (315, 91133), (329, 87255), (423, 67865), (441, 65095), (705, 40719), (735, 39057), (831, 34545), (987, 29085), (1385, 20727), (1645, 17451), (1939, 14805), (2115, 13573), (2205, 13019), (2303, 12465), (2493, 11515), (2961, 9695), (4155, 6909), (4935, 5817)]