397806880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{577}}^1$

素因数の和:762

約数の個数: 96

約数和(自身を含む): 978808320

約数和(自身を除く): 581001440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 139, 155, 160, 248, 278, 310, 496, 556, 577, 620, 695, 992, 1112, 1154, 1240, 1390, 2224, 2308, 2480, 2780, 2885, 4309, 4448, 4616, 4960, 5560, 5770, 8618, 9232, 11120, 11540, 17236, 17887, 18464, 21545, 22240, 23080, 34472, 35774, 43090, 46160, 68944, 71548, 80203, 86180, 89435, 92320, 137888, 143096, 160406, 172360, 178870, 286192, 320812, 344720, 357740, 401015, 572384, 641624, 689440, 715480, 802030, 1283248, 1430960, 1604060, 2486293, 2566496, 2861920, 3208120, 4972586, 6416240, 9945172, 12431465, 12832480, 19890344, 24862930, 39780688, 49725860, 79561376, 99451720, 198903440, 397806880]

約数ペア:

[(1, 397806880), (2, 198903440), (4, 99451720), (5, 79561376), (8, 49725860), (10, 39780688), (16, 24862930), (20, 19890344), (31, 12832480), (32, 12431465), (40, 9945172), (62, 6416240), (80, 4972586), (124, 3208120), (139, 2861920), (155, 2566496), (160, 2486293), (248, 1604060), (278, 1430960), (310, 1283248), (496, 802030), (556, 715480), (577, 689440), (620, 641624), (695, 572384), (992, 401015), (1112, 357740), (1154, 344720), (1240, 320812), (1390, 286192), (2224, 178870), (2308, 172360), (2480, 160406), (2780, 143096), (2885, 137888), (4309, 92320), (4448, 89435), (4616, 86180), (4960, 80203), (5560, 71548), (5770, 68944), (8618, 46160), (9232, 43090), (11120, 35774), (11540, 34472), (17236, 23080), (17887, 22240), (18464, 21545)]