199684640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 492355584

約数和(自身を除く): 292670944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 127, 155, 160, 248, 254, 310, 317, 496, 508, 620, 634, 635, 992, 1016, 1240, 1268, 1270, 1585, 2032, 2480, 2536, 2540, 3170, 3937, 4064, 4960, 5072, 5080, 6340, 7874, 9827, 10144, 10160, 12680, 15748, 19654, 19685, 20320, 25360, 31496, 39308, 39370, 40259, 49135, 50720, 62992, 78616, 78740, 80518, 98270, 125984, 157232, 157480, 161036, 196540, 201295, 314464, 314960, 322072, 393080, 402590, 629920, 644144, 786160, 805180, 1248029, 1288288, 1572320, 1610360, 2496058, 3220720, 4992116, 6240145, 6441440, 9984232, 12480290, 19968464, 24960580, 39936928, 49921160, 99842320, 199684640]

約数ペア:

[(1, 199684640), (2, 99842320), (4, 49921160), (5, 39936928), (8, 24960580), (10, 19968464), (16, 12480290), (20, 9984232), (31, 6441440), (32, 6240145), (40, 4992116), (62, 3220720), (80, 2496058), (124, 1610360), (127, 1572320), (155, 1288288), (160, 1248029), (248, 805180), (254, 786160), (310, 644144), (317, 629920), (496, 402590), (508, 393080), (620, 322072), (634, 314960), (635, 314464), (992, 201295), (1016, 196540), (1240, 161036), (1268, 157480), (1270, 157232), (1585, 125984), (2032, 98270), (2480, 80518), (2536, 78740), (2540, 78616), (3170, 62992), (3937, 50720), (4064, 49135), (4960, 40259), (5072, 39370), (5080, 39308), (6340, 31496), (7874, 25360), (9827, 20320), (10144, 19685), (10160, 19654), (12680, 15748)]