31904560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 77620032

約数和(自身を除く): 45715472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 71, 80, 82, 137, 142, 164, 205, 274, 284, 328, 355, 410, 548, 568, 656, 685, 710, 820, 1096, 1136, 1370, 1420, 1640, 2192, 2740, 2840, 2911, 3280, 5480, 5617, 5680, 5822, 9727, 10960, 11234, 11644, 14555, 19454, 22468, 23288, 28085, 29110, 38908, 44936, 46576, 48635, 56170, 58220, 77816, 89872, 97270, 112340, 116440, 155632, 194540, 224680, 232880, 389080, 398807, 449360, 778160, 797614, 1595228, 1994035, 3190456, 3988070, 6380912, 7976140, 15952280, 31904560]

約数ペア:

[(1, 31904560), (2, 15952280), (4, 7976140), (5, 6380912), (8, 3988070), (10, 3190456), (16, 1994035), (20, 1595228), (40, 797614), (41, 778160), (71, 449360), (80, 398807), (82, 389080), (137, 232880), (142, 224680), (164, 194540), (205, 155632), (274, 116440), (284, 112340), (328, 97270), (355, 89872), (410, 77816), (548, 58220), (568, 56170), (656, 48635), (685, 46576), (710, 44936), (820, 38908), (1096, 29110), (1136, 28085), (1370, 23288), (1420, 22468), (1640, 19454), (2192, 14555), (2740, 11644), (2840, 11234), (2911, 10960), (3280, 9727), (5480, 5822), (5617, 5680)]