385439120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 160

約数和(自身を含む): 1028505600

約数和(自身を除く): 643066480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 71, 80, 88, 110, 124, 142, 155, 176, 199, 220, 248, 284, 310, 341, 355, 398, 440, 496, 568, 620, 682, 710, 781, 796, 880, 995, 1136, 1240, 1364, 1420, 1562, 1592, 1705, 1990, 2189, 2201, 2480, 2728, 2840, 3124, 3184, 3410, 3905, 3980, 4378, 4402, 5456, 5680, 6169, 6248, 6820, 7810, 7960, 8756, 8804, 10945, 11005, 12338, 12496, 13640, 14129, 15620, 15920, 17512, 17608, 21890, 22010, 24211, 24676, 27280, 28258, 30845, 31240, 35024, 35216, 43780, 44020, 48422, 49352, 56516, 61690, 62480, 67859, 70645, 87560, 88040, 96844, 98704, 113032, 121055, 123380, 135718, 141290, 155419, 175120, 176080, 193688, 226064, 242110, 246760, 271436, 282580, 310838, 339295, 387376, 437999, 484220, 493520, 542872, 565160, 621676, 678590, 777095, 875998, 968440, 1085744, 1130320, 1243352, 1357180, 1554190, 1751996, 1936880, 2189995, 2486704, 2714360, 3108380, 3503992, 4379990, 4817989, 5428720, 6216760, 7007984, 8759980, 9635978, 12433520, 17519960, 19271956, 24089945, 35039920, 38543912, 48179890, 77087824, 96359780, 192719560, 385439120]

約数ペア:

[(1, 385439120), (2, 192719560), (4, 96359780), (5, 77087824), (8, 48179890), (10, 38543912), (11, 35039920), (16, 24089945), (20, 19271956), (22, 17519960), (31, 12433520), (40, 9635978), (44, 8759980), (55, 7007984), (62, 6216760), (71, 5428720), (80, 4817989), (88, 4379990), (110, 3503992), (124, 3108380), (142, 2714360), (155, 2486704), (176, 2189995), (199, 1936880), (220, 1751996), (248, 1554190), (284, 1357180), (310, 1243352), (341, 1130320), (355, 1085744), (398, 968440), (440, 875998), (496, 777095), (568, 678590), (620, 621676), (682, 565160), (710, 542872), (781, 493520), (796, 484220), (880, 437999), (995, 387376), (1136, 339295), (1240, 310838), (1364, 282580), (1420, 271436), (1562, 246760), (1592, 242110), (1705, 226064), (1990, 193688), (2189, 176080), (2201, 175120), (2480, 155419), (2728, 141290), (2840, 135718), (3124, 123380), (3184, 121055), (3410, 113032), (3905, 98704), (3980, 96844), (4378, 88040), (4402, 87560), (5456, 70645), (5680, 67859), (6169, 62480), (6248, 61690), (6820, 56516), (7810, 49352), (7960, 48422), (8756, 44020), (8804, 43780), (10945, 35216), (11005, 35024), (12338, 31240), (12496, 30845), (13640, 28258), (14129, 27280), (15620, 24676), (15920, 24211), (17512, 22010), (17608, 21890)]