18352520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 44264880

約数和(自身を除く): 25912360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 170, 197, 274, 340, 394, 548, 680, 685, 788, 985, 1096, 1370, 1576, 1970, 2329, 2740, 3349, 3940, 4658, 5480, 6698, 7880, 9316, 11645, 13396, 16745, 18632, 23290, 26792, 26989, 33490, 46580, 53978, 66980, 93160, 107956, 133960, 134945, 215912, 269890, 458813, 539780, 917626, 1079560, 1835252, 2294065, 3670504, 4588130, 9176260, 18352520]

約数ペア:

[(1, 18352520), (2, 9176260), (4, 4588130), (5, 3670504), (8, 2294065), (10, 1835252), (17, 1079560), (20, 917626), (34, 539780), (40, 458813), (68, 269890), (85, 215912), (136, 134945), (137, 133960), (170, 107956), (197, 93160), (274, 66980), (340, 53978), (394, 46580), (548, 33490), (680, 26989), (685, 26792), (788, 23290), (985, 18632), (1096, 16745), (1370, 13396), (1576, 11645), (1970, 9316), (2329, 7880), (2740, 6698), (3349, 5480), (3940, 4658)]