19802019990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1\times {\mathrm{311}}^1$

素因数の和:738

約数の個数: 128

約数和(自身を含む): 48910417920

約数和(自身を除く): 29108397930

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 167, 179, 213, 311, 334, 355, 358, 426, 501, 537, 622, 710, 835, 895, 933, 1002, 1065, 1074, 1555, 1670, 1790, 1866, 2130, 2505, 2685, 3110, 4665, 5010, 5370, 9330, 11857, 12709, 22081, 23714, 25418, 29893, 35571, 38127, 44162, 51937, 55669, 59285, 59786, 63545, 66243, 71142, 76254, 89679, 103874, 110405, 111338, 118570, 127090, 132486, 149465, 155811, 167007, 177855, 179358, 190635, 220810, 259685, 278345, 298930, 311622, 331215, 334014, 355710, 381270, 448395, 519370, 556690, 662430, 779055, 835035, 896790, 1558110, 1670070, 2122403, 3687527, 3952499, 4244806, 6367209, 7375054, 7904998, 9296723, 10612015, 11062581, 11857497, 12734418, 18437635, 18593446, 19762495, 21224030, 22125162, 23714994, 27890169, 31836045, 36875270, 39524990, 46483615, 55312905, 55780338, 59287485, 63672090, 92967230, 110625810, 118574970, 139450845, 278901690, 660067333, 1320134666, 1980201999, 3300336665, 3960403998, 6600673330, 9901009995, 19802019990]

約数ペア:

[(1, 19802019990), (2, 9901009995), (3, 6600673330), (5, 3960403998), (6, 3300336665), (10, 1980201999), (15, 1320134666), (30, 660067333), (71, 278901690), (142, 139450845), (167, 118574970), (179, 110625810), (213, 92967230), (311, 63672090), (334, 59287485), (355, 55780338), (358, 55312905), (426, 46483615), (501, 39524990), (537, 36875270), (622, 31836045), (710, 27890169), (835, 23714994), (895, 22125162), (933, 21224030), (1002, 19762495), (1065, 18593446), (1074, 18437635), (1555, 12734418), (1670, 11857497), (1790, 11062581), (1866, 10612015), (2130, 9296723), (2505, 7904998), (2685, 7375054), (3110, 6367209), (4665, 4244806), (5010, 3952499), (5370, 3687527), (9330, 2122403), (11857, 1670070), (12709, 1558110), (22081, 896790), (23714, 835035), (25418, 779055), (29893, 662430), (35571, 556690), (38127, 519370), (44162, 448395), (51937, 381270), (55669, 355710), (59285, 334014), (59786, 331215), (63545, 311622), (66243, 298930), (71142, 278345), (76254, 259685), (89679, 220810), (103874, 190635), (110405, 179358), (111338, 177855), (118570, 167007), (127090, 155811), (132486, 149465)]