20168231775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{1901}}^1$

素因数の和:2141

約数の個数: 96

約数和(自身を含む): 36220592448

約数和(自身を除く): 16052360673

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 157, 159, 255, 265, 425, 471, 785, 795, 901, 1275, 1325, 1901, 2355, 2669, 2703, 3925, 3975, 4505, 5703, 8007, 8321, 9505, 11775, 13345, 13515, 22525, 24963, 28515, 32317, 40035, 41605, 47525, 66725, 67575, 96951, 100753, 124815, 141457, 142575, 161585, 200175, 208025, 298457, 302259, 424371, 484755, 503765, 624075, 707285, 807925, 895371, 1492285, 1511295, 1712801, 2121855, 2423775, 2518825, 3536425, 4476855, 5073769, 5138403, 7461425, 7556475, 8564005, 10609275, 15221307, 15818221, 22384275, 25368845, 25692015, 42820025, 47454663, 76106535, 79091105, 126844225, 128460075, 237273315, 268909757, 380532675, 395455525, 806729271, 1186366575, 1344548785, 4033646355, 6722743925, 20168231775]

約数ペア:

[(1, 20168231775), (3, 6722743925), (5, 4033646355), (15, 1344548785), (17, 1186366575), (25, 806729271), (51, 395455525), (53, 380532675), (75, 268909757), (85, 237273315), (157, 128460075), (159, 126844225), (255, 79091105), (265, 76106535), (425, 47454663), (471, 42820025), (785, 25692015), (795, 25368845), (901, 22384275), (1275, 15818221), (1325, 15221307), (1901, 10609275), (2355, 8564005), (2669, 7556475), (2703, 7461425), (3925, 5138403), (3975, 5073769), (4505, 4476855), (5703, 3536425), (8007, 2518825), (8321, 2423775), (9505, 2121855), (11775, 1712801), (13345, 1511295), (13515, 1492285), (22525, 895371), (24963, 807925), (28515, 707285), (32317, 624075), (40035, 503765), (41605, 484755), (47525, 424371), (66725, 302259), (67575, 298457), (96951, 208025), (100753, 200175), (124815, 161585), (141457, 142575)]