211893680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2074

約数の個数: 80

約数和(自身を含む): 520633344

約数和(自身を除く): 308739664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 1240, 1333, 1720, 1987, 2480, 2666, 3440, 3974, 5332, 6665, 7948, 9935, 10664, 13330, 15896, 19870, 21328, 26660, 31792, 39740, 53320, 61597, 79480, 85441, 106640, 123194, 158960, 170882, 246388, 307985, 341764, 427205, 492776, 615970, 683528, 854410, 985552, 1231940, 1367056, 1708820, 2463880, 2648671, 3417640, 4927760, 5297342, 6835280, 10594684, 13243355, 21189368, 26486710, 42378736, 52973420, 105946840, 211893680]

約数ペア:

[(1, 211893680), (2, 105946840), (4, 52973420), (5, 42378736), (8, 26486710), (10, 21189368), (16, 13243355), (20, 10594684), (31, 6835280), (40, 5297342), (43, 4927760), (62, 3417640), (80, 2648671), (86, 2463880), (124, 1708820), (155, 1367056), (172, 1231940), (215, 985552), (248, 854410), (310, 683528), (344, 615970), (430, 492776), (496, 427205), (620, 341764), (688, 307985), (860, 246388), (1240, 170882), (1333, 158960), (1720, 123194), (1987, 106640), (2480, 85441), (2666, 79480), (3440, 61597), (3974, 53320), (5332, 39740), (6665, 31792), (7948, 26660), (9935, 21328), (10664, 19870), (13330, 15896)]