20194269075

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{547}}^1\times {\mathrm{2311}}^1$

素因数の和:2945

約数の個数: 72

約数和(自身を含む): 36762575616

約数和(自身を除く): 16568306541

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 547, 639, 1065, 1641, 1775, 2311, 2735, 3195, 4923, 5325, 6933, 8205, 11555, 13675, 15975, 20799, 24615, 34665, 38837, 41025, 57775, 103995, 116511, 123075, 164081, 173325, 194185, 349533, 492243, 519975, 582555, 820405, 970925, 1264117, 1476729, 1747665, 2461215, 2912775, 3792351, 4102025, 6320585, 7383645, 8738325, 11377053, 12306075, 18961755, 31602925, 36918225, 56885265, 89752307, 94808775, 269256921, 284426325, 448761535, 807770763, 1346284605, 2243807675, 4038853815, 6731423025, 20194269075]

約数ペア:

[(1, 20194269075), (3, 6731423025), (5, 4038853815), (9, 2243807675), (15, 1346284605), (25, 807770763), (45, 448761535), (71, 284426325), (75, 269256921), (213, 94808775), (225, 89752307), (355, 56885265), (547, 36918225), (639, 31602925), (1065, 18961755), (1641, 12306075), (1775, 11377053), (2311, 8738325), (2735, 7383645), (3195, 6320585), (4923, 4102025), (5325, 3792351), (6933, 2912775), (8205, 2461215), (11555, 1747665), (13675, 1476729), (15975, 1264117), (20799, 970925), (24615, 820405), (34665, 582555), (38837, 519975), (41025, 492243), (57775, 349533), (103995, 194185), (116511, 173325), (123075, 164081)]