19931250640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1\times {\mathrm{881}}^1$

素因数の和:1541

約数の個数: 160

約数和(自身を含む): 53861552640

約数和(自身を除く): 33930302000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 569, 710, 881, 994, 1136, 1138, 1420, 1762, 1988, 2276, 2485, 2840, 2845, 3524, 3976, 3983, 4405, 4552, 4970, 5680, 5690, 6167, 7048, 7952, 7966, 8810, 9104, 9940, 11380, 12334, 14096, 15932, 17620, 19880, 19915, 22760, 24668, 30835, 31864, 35240, 39760, 39830, 40399, 45520, 49336, 61670, 62551, 63728, 70480, 79660, 80798, 98672, 123340, 125102, 159320, 161596, 201995, 246680, 250204, 282793, 312755, 318640, 323192, 403990, 437857, 493360, 500408, 501289, 565586, 625510, 646384, 807980, 875714, 1000816, 1002578, 1131172, 1251020, 1413965, 1615960, 1751428, 2005156, 2189285, 2262344, 2502040, 2506445, 2827930, 3231920, 3502856, 3509023, 4010312, 4378570, 4524688, 5004080, 5012890, 5655860, 7005712, 7018046, 8020624, 8757140, 10025780, 11311720, 14036092, 17514280, 17545115, 20051560, 22623440, 28072184, 35028560, 35090230, 35591519, 40103120, 56144368, 70180460, 71183038, 140360920, 142366076, 177957595, 249140633, 280721840, 284732152, 355915190, 498281266, 569464304, 711830380, 996562532, 1245703165, 1423660760, 1993125064, 2491406330, 2847321520, 3986250128, 4982812660, 9965625320, 19931250640]

約数ペア:

[(1, 19931250640), (2, 9965625320), (4, 4982812660), (5, 3986250128), (7, 2847321520), (8, 2491406330), (10, 1993125064), (14, 1423660760), (16, 1245703165), (20, 996562532), (28, 711830380), (35, 569464304), (40, 498281266), (56, 355915190), (70, 284732152), (71, 280721840), (80, 249140633), (112, 177957595), (140, 142366076), (142, 140360920), (280, 71183038), (284, 70180460), (355, 56144368), (497, 40103120), (560, 35591519), (568, 35090230), (569, 35028560), (710, 28072184), (881, 22623440), (994, 20051560), (1136, 17545115), (1138, 17514280), (1420, 14036092), (1762, 11311720), (1988, 10025780), (2276, 8757140), (2485, 8020624), (2840, 7018046), (2845, 7005712), (3524, 5655860), (3976, 5012890), (3983, 5004080), (4405, 4524688), (4552, 4378570), (4970, 4010312), (5680, 3509023), (5690, 3502856), (6167, 3231920), (7048, 2827930), (7952, 2506445), (7966, 2502040), (8810, 2262344), (9104, 2189285), (9940, 2005156), (11380, 1751428), (12334, 1615960), (14096, 1413965), (15932, 1251020), (17620, 1131172), (19880, 1002578), (19915, 1000816), (22760, 875714), (24668, 807980), (30835, 646384), (31864, 625510), (35240, 565586), (39760, 501289), (39830, 500408), (40399, 493360), (45520, 437857), (49336, 403990), (61670, 323192), (62551, 318640), (63728, 312755), (70480, 282793), (79660, 250204), (80798, 246680), (98672, 201995), (123340, 161596), (125102, 159320)]