18745305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 34525440

約数和(自身を除く): 15780135

約数列:

[1, 3, 5, 15, 17, 19, 51, 53, 57, 73, 85, 95, 159, 219, 255, 265, 285, 323, 365, 795, 901, 969, 1007, 1095, 1241, 1387, 1615, 2703, 3021, 3723, 3869, 4161, 4505, 4845, 5035, 6205, 6935, 11607, 13515, 15105, 17119, 18615, 19345, 20805, 23579, 51357, 58035, 65773, 70737, 73511, 85595, 117895, 197319, 220533, 256785, 328865, 353685, 367555, 986595, 1102665, 1249687, 3749061, 6248435, 18745305]

約数ペア:

[(1, 18745305), (3, 6248435), (5, 3749061), (15, 1249687), (17, 1102665), (19, 986595), (51, 367555), (53, 353685), (57, 328865), (73, 256785), (85, 220533), (95, 197319), (159, 117895), (219, 85595), (255, 73511), (265, 70737), (285, 65773), (323, 58035), (365, 51357), (795, 23579), (901, 20805), (969, 19345), (1007, 18615), (1095, 17119), (1241, 15105), (1387, 13515), (1615, 11607), (2703, 6935), (3021, 6205), (3723, 5035), (3869, 4845), (4161, 4505)]