64698040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 171072000

約数和(自身を除く): 106373960

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 71, 76, 88, 95, 109, 110, 142, 152, 190, 209, 218, 220, 284, 355, 380, 418, 436, 440, 545, 568, 710, 760, 781, 836, 872, 1045, 1090, 1199, 1349, 1420, 1562, 1672, 2071, 2090, 2180, 2398, 2698, 2840, 3124, 3905, 4142, 4180, 4360, 4796, 5396, 5995, 6248, 6745, 7739, 7810, 8284, 8360, 9592, 10355, 10792, 11990, 13490, 14839, 15478, 15620, 16568, 20710, 22781, 23980, 26980, 29678, 30956, 31240, 38695, 41420, 45562, 47960, 53960, 59356, 61912, 74195, 77390, 82840, 85129, 91124, 113905, 118712, 147041, 148390, 154780, 170258, 182248, 227810, 294082, 296780, 309560, 340516, 425645, 455620, 588164, 593560, 681032, 735205, 851290, 911240, 1176328, 1470410, 1617451, 1702580, 2940820, 3234902, 3405160, 5881640, 6469804, 8087255, 12939608, 16174510, 32349020, 64698040]

約数ペア:

[(1, 64698040), (2, 32349020), (4, 16174510), (5, 12939608), (8, 8087255), (10, 6469804), (11, 5881640), (19, 3405160), (20, 3234902), (22, 2940820), (38, 1702580), (40, 1617451), (44, 1470410), (55, 1176328), (71, 911240), (76, 851290), (88, 735205), (95, 681032), (109, 593560), (110, 588164), (142, 455620), (152, 425645), (190, 340516), (209, 309560), (218, 296780), (220, 294082), (284, 227810), (355, 182248), (380, 170258), (418, 154780), (436, 148390), (440, 147041), (545, 118712), (568, 113905), (710, 91124), (760, 85129), (781, 82840), (836, 77390), (872, 74195), (1045, 61912), (1090, 59356), (1199, 53960), (1349, 47960), (1420, 45562), (1562, 41420), (1672, 38695), (2071, 31240), (2090, 30956), (2180, 29678), (2398, 26980), (2698, 23980), (2840, 22781), (3124, 20710), (3905, 16568), (4142, 15620), (4180, 15478), (4360, 14839), (4796, 13490), (5396, 11990), (5995, 10792), (6248, 10355), (6745, 9592), (7739, 8360), (7810, 8284)]