16998640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 43390080

約数和(自身を除く): 26391440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 431, 464, 493, 580, 680, 862, 986, 1160, 1360, 1724, 1972, 2155, 2320, 2465, 3448, 3944, 4310, 4930, 6896, 7327, 7888, 8620, 9860, 12499, 14654, 17240, 19720, 24998, 29308, 34480, 36635, 39440, 49996, 58616, 62495, 73270, 99992, 117232, 124990, 146540, 199984, 212483, 249980, 293080, 424966, 499960, 586160, 849932, 999920, 1062415, 1699864, 2124830, 3399728, 4249660, 8499320, 16998640]

約数ペア:

[(1, 16998640), (2, 8499320), (4, 4249660), (5, 3399728), (8, 2124830), (10, 1699864), (16, 1062415), (17, 999920), (20, 849932), (29, 586160), (34, 499960), (40, 424966), (58, 293080), (68, 249980), (80, 212483), (85, 199984), (116, 146540), (136, 124990), (145, 117232), (170, 99992), (232, 73270), (272, 62495), (290, 58616), (340, 49996), (431, 39440), (464, 36635), (493, 34480), (580, 29308), (680, 24998), (862, 19720), (986, 17240), (1160, 14654), (1360, 12499), (1724, 9860), (1972, 8620), (2155, 7888), (2320, 7327), (2465, 6896), (3448, 4930), (3944, 4310)]