428698240

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:298

約数の個数: 128

約数和(自身を含む): 1062432000

約数和(自身を除く): 633733760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 79, 80, 122, 128, 139, 158, 160, 244, 278, 305, 316, 320, 395, 488, 556, 610, 632, 640, 695, 790, 976, 1112, 1220, 1264, 1390, 1580, 1952, 2224, 2440, 2528, 2780, 3160, 3904, 4448, 4819, 4880, 5056, 5560, 6320, 7808, 8479, 8896, 9638, 9760, 10112, 10981, 11120, 12640, 16958, 17792, 19276, 19520, 21962, 22240, 24095, 25280, 33916, 38552, 39040, 42395, 43924, 44480, 48190, 50560, 54905, 67832, 77104, 84790, 87848, 88960, 96380, 109810, 135664, 154208, 169580, 175696, 192760, 219620, 271328, 308416, 339160, 351392, 385520, 439240, 542656, 616832, 669841, 678320, 702784, 771040, 878480, 1085312, 1339682, 1356640, 1405568, 1542080, 1756960, 2679364, 2713280, 3084160, 3349205, 3513920, 5358728, 5426560, 6698410, 7027840, 10717456, 13396820, 21434912, 26793640, 42869824, 53587280, 85739648, 107174560, 214349120, 428698240]

約数ペア:

[(1, 428698240), (2, 214349120), (4, 107174560), (5, 85739648), (8, 53587280), (10, 42869824), (16, 26793640), (20, 21434912), (32, 13396820), (40, 10717456), (61, 7027840), (64, 6698410), (79, 5426560), (80, 5358728), (122, 3513920), (128, 3349205), (139, 3084160), (158, 2713280), (160, 2679364), (244, 1756960), (278, 1542080), (305, 1405568), (316, 1356640), (320, 1339682), (395, 1085312), (488, 878480), (556, 771040), (610, 702784), (632, 678320), (640, 669841), (695, 616832), (790, 542656), (976, 439240), (1112, 385520), (1220, 351392), (1264, 339160), (1390, 308416), (1580, 271328), (1952, 219620), (2224, 192760), (2440, 175696), (2528, 169580), (2780, 154208), (3160, 135664), (3904, 109810), (4448, 96380), (4819, 88960), (4880, 87848), (5056, 84790), (5560, 77104), (6320, 67832), (7808, 54905), (8479, 50560), (8896, 48190), (9638, 44480), (9760, 43924), (10112, 42395), (10981, 39040), (11120, 38552), (12640, 33916), (16958, 25280), (17792, 24095), (19276, 22240), (19520, 21962)]