398580640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 192

約数和(自身を含む): 1071221760

約数和(自身を除く): 672641120

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 31, 32, 34, 40, 58, 62, 68, 80, 85, 116, 124, 136, 145, 155, 160, 163, 170, 232, 248, 272, 290, 310, 326, 340, 464, 493, 496, 527, 544, 580, 620, 652, 680, 815, 899, 928, 986, 992, 1054, 1160, 1240, 1304, 1360, 1630, 1798, 1972, 2108, 2320, 2465, 2480, 2608, 2635, 2720, 2771, 3260, 3596, 3944, 4216, 4495, 4640, 4727, 4930, 4960, 5053, 5216, 5270, 5542, 6520, 7192, 7888, 8432, 8990, 9454, 9860, 10106, 10540, 11084, 13040, 13855, 14384, 15283, 15776, 16864, 17980, 18908, 19720, 20212, 21080, 22168, 23635, 25265, 26080, 27710, 28768, 30566, 35960, 37816, 39440, 40424, 42160, 44336, 47270, 50530, 55420, 61132, 71920, 75632, 76415, 78880, 80359, 80848, 84320, 85901, 88672, 94540, 101060, 110840, 122264, 143840, 146537, 151264, 152830, 160718, 161696, 171802, 189080, 202120, 221680, 244528, 293074, 305660, 321436, 343604, 378160, 401795, 404240, 429505, 443360, 489056, 586148, 611320, 642872, 687208, 732685, 756320, 803590, 808480, 859010, 1172296, 1222640, 1285744, 1374416, 1465370, 1607180, 1718020, 2344592, 2445280, 2491129, 2571488, 2748832, 2930740, 3214360, 3436040, 4689184, 4982258, 5861480, 6428720, 6872080, 9964516, 11722960, 12455645, 12857440, 13744160, 19929032, 23445920, 24911290, 39858064, 49822580, 79716128, 99645160, 199290320, 398580640]

約数ペア:

[(1, 398580640), (2, 199290320), (4, 99645160), (5, 79716128), (8, 49822580), (10, 39858064), (16, 24911290), (17, 23445920), (20, 19929032), (29, 13744160), (31, 12857440), (32, 12455645), (34, 11722960), (40, 9964516), (58, 6872080), (62, 6428720), (68, 5861480), (80, 4982258), (85, 4689184), (116, 3436040), (124, 3214360), (136, 2930740), (145, 2748832), (155, 2571488), (160, 2491129), (163, 2445280), (170, 2344592), (232, 1718020), (248, 1607180), (272, 1465370), (290, 1374416), (310, 1285744), (326, 1222640), (340, 1172296), (464, 859010), (493, 808480), (496, 803590), (527, 756320), (544, 732685), (580, 687208), (620, 642872), (652, 611320), (680, 586148), (815, 489056), (899, 443360), (928, 429505), (986, 404240), (992, 401795), (1054, 378160), (1160, 343604), (1240, 321436), (1304, 305660), (1360, 293074), (1630, 244528), (1798, 221680), (1972, 202120), (2108, 189080), (2320, 171802), (2465, 161696), (2480, 160718), (2608, 152830), (2635, 151264), (2720, 146537), (2771, 143840), (3260, 122264), (3596, 110840), (3944, 101060), (4216, 94540), (4495, 88672), (4640, 85901), (4727, 84320), (4930, 80848), (4960, 80359), (5053, 78880), (5216, 76415), (5270, 75632), (5542, 71920), (6520, 61132), (7192, 55420), (7888, 50530), (8432, 47270), (8990, 44336), (9454, 42160), (9860, 40424), (10106, 39440), (10540, 37816), (11084, 35960), (13040, 30566), (13855, 28768), (14384, 27710), (15283, 26080), (15776, 25265), (16864, 23635), (17980, 22168), (18908, 21080), (19720, 20212)]