128769040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 312122880

約数和(自身を除く): 183353840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 137, 155, 248, 274, 310, 379, 496, 548, 620, 685, 758, 1096, 1240, 1370, 1516, 1895, 2192, 2480, 2740, 3032, 3790, 4247, 5480, 6064, 7580, 8494, 10960, 11749, 15160, 16988, 21235, 23498, 30320, 33976, 42470, 46996, 51923, 58745, 67952, 84940, 93992, 103846, 117490, 169880, 187984, 207692, 234980, 259615, 339760, 415384, 469960, 519230, 830768, 939920, 1038460, 1609613, 2076920, 3219226, 4153840, 6438452, 8048065, 12876904, 16096130, 25753808, 32192260, 64384520, 128769040]

約数ペア:

[(1, 128769040), (2, 64384520), (4, 32192260), (5, 25753808), (8, 16096130), (10, 12876904), (16, 8048065), (20, 6438452), (31, 4153840), (40, 3219226), (62, 2076920), (80, 1609613), (124, 1038460), (137, 939920), (155, 830768), (248, 519230), (274, 469960), (310, 415384), (379, 339760), (496, 259615), (548, 234980), (620, 207692), (685, 187984), (758, 169880), (1096, 117490), (1240, 103846), (1370, 93992), (1516, 84940), (1895, 67952), (2192, 58745), (2480, 51923), (2740, 46996), (3032, 42470), (3790, 33976), (4247, 30320), (5480, 23498), (6064, 21235), (7580, 16988), (8494, 15160), (10960, 11749)]