20514648

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{653}}^1$

素因数の和:697

約数の個数: 128

約数和(自身を含む): 67806720

約数和(自身を除く): 47292072

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 17, 21, 22, 24, 28, 33, 34, 42, 44, 51, 56, 66, 68, 77, 84, 88, 102, 119, 132, 136, 154, 168, 187, 204, 231, 238, 264, 308, 357, 374, 408, 462, 476, 561, 616, 653, 714, 748, 924, 952, 1122, 1306, 1309, 1428, 1496, 1848, 1959, 2244, 2612, 2618, 2856, 3918, 3927, 4488, 4571, 5224, 5236, 7183, 7836, 7854, 9142, 10472, 11101, 13713, 14366, 15672, 15708, 18284, 21549, 22202, 27426, 28732, 31416, 33303, 36568, 43098, 44404, 50281, 54852, 57464, 66606, 77707, 86196, 88808, 100562, 109704, 122111, 133212, 150843, 155414, 172392, 201124, 233121, 244222, 266424, 301686, 310828, 366333, 402248, 466242, 488444, 603372, 621656, 732666, 854777, 932484, 976888, 1206744, 1465332, 1709554, 1864968, 2564331, 2930664, 3419108, 5128662, 6838216, 10257324, 20514648]

約数ペア:

[(1, 20514648), (2, 10257324), (3, 6838216), (4, 5128662), (6, 3419108), (7, 2930664), (8, 2564331), (11, 1864968), (12, 1709554), (14, 1465332), (17, 1206744), (21, 976888), (22, 932484), (24, 854777), (28, 732666), (33, 621656), (34, 603372), (42, 488444), (44, 466242), (51, 402248), (56, 366333), (66, 310828), (68, 301686), (77, 266424), (84, 244222), (88, 233121), (102, 201124), (119, 172392), (132, 155414), (136, 150843), (154, 133212), (168, 122111), (187, 109704), (204, 100562), (231, 88808), (238, 86196), (264, 77707), (308, 66606), (357, 57464), (374, 54852), (408, 50281), (462, 44404), (476, 43098), (561, 36568), (616, 33303), (653, 31416), (714, 28732), (748, 27426), (924, 22202), (952, 21549), (1122, 18284), (1306, 15708), (1309, 15672), (1428, 14366), (1496, 13713), (1848, 11101), (1959, 10472), (2244, 9142), (2612, 7854), (2618, 7836), (2856, 7183), (3918, 5236), (3927, 5224), (4488, 4571)]