204340840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 527523840

約数和(自身を除く): 323183000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 71, 88, 110, 124, 142, 155, 211, 220, 248, 284, 310, 341, 355, 422, 440, 568, 620, 682, 710, 781, 844, 1055, 1240, 1364, 1420, 1562, 1688, 1705, 2110, 2201, 2321, 2728, 2840, 3124, 3410, 3905, 4220, 4402, 4642, 6248, 6541, 6820, 7810, 8440, 8804, 9284, 11005, 11605, 13082, 13640, 14981, 15620, 17608, 18568, 22010, 23210, 24211, 26164, 29962, 31240, 32705, 44020, 46420, 48422, 52328, 59924, 65410, 71951, 74905, 88040, 92840, 96844, 119848, 121055, 130820, 143902, 149810, 164791, 193688, 242110, 261640, 287804, 299620, 329582, 359755, 464411, 484220, 575608, 599240, 659164, 719510, 823955, 928822, 968440, 1318328, 1439020, 1647910, 1857644, 2322055, 2878040, 3295820, 3715288, 4644110, 5108521, 6591640, 9288220, 10217042, 18576440, 20434084, 25542605, 40868168, 51085210, 102170420, 204340840]

約数ペア:

[(1, 204340840), (2, 102170420), (4, 51085210), (5, 40868168), (8, 25542605), (10, 20434084), (11, 18576440), (20, 10217042), (22, 9288220), (31, 6591640), (40, 5108521), (44, 4644110), (55, 3715288), (62, 3295820), (71, 2878040), (88, 2322055), (110, 1857644), (124, 1647910), (142, 1439020), (155, 1318328), (211, 968440), (220, 928822), (248, 823955), (284, 719510), (310, 659164), (341, 599240), (355, 575608), (422, 484220), (440, 464411), (568, 359755), (620, 329582), (682, 299620), (710, 287804), (781, 261640), (844, 242110), (1055, 193688), (1240, 164791), (1364, 149810), (1420, 143902), (1562, 130820), (1688, 121055), (1705, 119848), (2110, 96844), (2201, 92840), (2321, 88040), (2728, 74905), (2840, 71951), (3124, 65410), (3410, 59924), (3905, 52328), (4220, 48422), (4402, 46420), (4642, 44020), (6248, 32705), (6541, 31240), (6820, 29962), (7810, 26164), (8440, 24211), (8804, 23210), (9284, 22010), (11005, 18568), (11605, 17608), (13082, 15620), (13640, 14981)]