391528760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1049}}^1$

素因数の和:1141

約数の個数: 128

約数和(自身を含む): 1064448000

約数和(自身を除く): 672919240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 43, 56, 62, 70, 86, 124, 140, 155, 172, 215, 217, 248, 280, 301, 310, 344, 430, 434, 602, 620, 860, 868, 1049, 1085, 1204, 1240, 1333, 1505, 1720, 1736, 2098, 2170, 2408, 2666, 3010, 4196, 4340, 5245, 5332, 6020, 6665, 7343, 8392, 8680, 9331, 10490, 10664, 12040, 13330, 14686, 18662, 20980, 26660, 29372, 32519, 36715, 37324, 41960, 45107, 46655, 53320, 58744, 65038, 73430, 74648, 90214, 93310, 130076, 146860, 162595, 180428, 186620, 225535, 227633, 260152, 293720, 315749, 325190, 360856, 373240, 451070, 455266, 631498, 650380, 902140, 910532, 1138165, 1262996, 1300760, 1398317, 1578745, 1804280, 1821064, 2276330, 2525992, 2796634, 3157490, 4552660, 5593268, 6314980, 6991585, 9105320, 9788219, 11186536, 12629960, 13983170, 19576438, 27966340, 39152876, 48941095, 55932680, 78305752, 97882190, 195764380, 391528760]

約数ペア:

[(1, 391528760), (2, 195764380), (4, 97882190), (5, 78305752), (7, 55932680), (8, 48941095), (10, 39152876), (14, 27966340), (20, 19576438), (28, 13983170), (31, 12629960), (35, 11186536), (40, 9788219), (43, 9105320), (56, 6991585), (62, 6314980), (70, 5593268), (86, 4552660), (124, 3157490), (140, 2796634), (155, 2525992), (172, 2276330), (215, 1821064), (217, 1804280), (248, 1578745), (280, 1398317), (301, 1300760), (310, 1262996), (344, 1138165), (430, 910532), (434, 902140), (602, 650380), (620, 631498), (860, 455266), (868, 451070), (1049, 373240), (1085, 360856), (1204, 325190), (1240, 315749), (1333, 293720), (1505, 260152), (1720, 227633), (1736, 225535), (2098, 186620), (2170, 180428), (2408, 162595), (2666, 146860), (3010, 130076), (4196, 93310), (4340, 90214), (5245, 74648), (5332, 73430), (6020, 65038), (6665, 58744), (7343, 53320), (8392, 46655), (8680, 45107), (9331, 41960), (10490, 37324), (10664, 36715), (12040, 32519), (13330, 29372), (14686, 26660), (18662, 20980)]