287804560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{491}}^1$

素因数の和:952

約数の個数: 80

約数和(自身を含む): 711597312

約数和(自身を除く): 423792752

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 431, 491, 680, 862, 982, 1360, 1724, 1964, 2155, 2455, 3448, 3928, 4310, 4910, 6896, 7327, 7856, 8347, 8620, 9820, 14654, 16694, 17240, 19640, 29308, 33388, 34480, 36635, 39280, 41735, 58616, 66776, 73270, 83470, 117232, 133552, 146540, 166940, 211621, 293080, 333880, 423242, 586160, 667760, 846484, 1058105, 1692968, 2116210, 3385936, 3597557, 4232420, 7195114, 8464840, 14390228, 16929680, 17987785, 28780456, 35975570, 57560912, 71951140, 143902280, 287804560]

約数ペア:

[(1, 287804560), (2, 143902280), (4, 71951140), (5, 57560912), (8, 35975570), (10, 28780456), (16, 17987785), (17, 16929680), (20, 14390228), (34, 8464840), (40, 7195114), (68, 4232420), (80, 3597557), (85, 3385936), (136, 2116210), (170, 1692968), (272, 1058105), (340, 846484), (431, 667760), (491, 586160), (680, 423242), (862, 333880), (982, 293080), (1360, 211621), (1724, 166940), (1964, 146540), (2155, 133552), (2455, 117232), (3448, 83470), (3928, 73270), (4310, 66776), (4910, 58616), (6896, 41735), (7327, 39280), (7856, 36635), (8347, 34480), (8620, 33388), (9820, 29308), (14654, 19640), (16694, 17240)]