678978640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{433}}^1\times {\mathrm{1153}}^1$

素因数の和:1616

約数の個数: 80

約数和(自身を含む): 1676798928

約数和(自身を除く): 997820288

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 433, 680, 866, 1153, 1360, 1732, 2165, 2306, 3464, 4330, 4612, 5765, 6928, 7361, 8660, 9224, 11530, 14722, 17320, 18448, 19601, 23060, 29444, 34640, 36805, 39202, 46120, 58888, 73610, 78404, 92240, 98005, 117776, 147220, 156808, 196010, 294440, 313616, 392020, 499249, 588880, 784040, 998498, 1568080, 1996996, 2496245, 3993992, 4992490, 7987984, 8487233, 9984980, 16974466, 19969960, 33948932, 39939920, 42436165, 67897864, 84872330, 135795728, 169744660, 339489320, 678978640]

約数ペア:

[(1, 678978640), (2, 339489320), (4, 169744660), (5, 135795728), (8, 84872330), (10, 67897864), (16, 42436165), (17, 39939920), (20, 33948932), (34, 19969960), (40, 16974466), (68, 9984980), (80, 8487233), (85, 7987984), (136, 4992490), (170, 3993992), (272, 2496245), (340, 1996996), (433, 1568080), (680, 998498), (866, 784040), (1153, 588880), (1360, 499249), (1732, 392020), (2165, 313616), (2306, 294440), (3464, 196010), (4330, 156808), (4612, 147220), (5765, 117776), (6928, 98005), (7361, 92240), (8660, 78404), (9224, 73610), (11530, 58888), (14722, 46120), (17320, 39202), (18448, 36805), (19601, 34640), (23060, 29444)]