404727680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1568

約数の個数: 128

約数和(自身を含む): 1124660160

約数和(自身を除く): 719932480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 128, 140, 160, 224, 244, 280, 305, 320, 427, 448, 488, 560, 610, 640, 854, 896, 976, 1120, 1220, 1481, 1708, 1952, 2135, 2240, 2440, 2962, 3416, 3904, 4270, 4480, 4880, 5924, 6832, 7405, 7808, 8540, 9760, 10367, 11848, 13664, 14810, 17080, 19520, 20734, 23696, 27328, 29620, 34160, 39040, 41468, 47392, 51835, 54656, 59240, 68320, 82936, 90341, 94784, 103670, 118480, 136640, 165872, 180682, 189568, 207340, 236960, 273280, 331744, 361364, 414680, 451705, 473920, 632387, 663488, 722728, 829360, 903410, 947840, 1264774, 1326976, 1445456, 1658720, 1806820, 2529548, 2890912, 3161935, 3317440, 3613640, 5059096, 5781824, 6323870, 6634880, 7227280, 10118192, 11563648, 12647740, 14454560, 20236384, 25295480, 28909120, 40472768, 50590960, 57818240, 80945536, 101181920, 202363840, 404727680]

約数ペア:

[(1, 404727680), (2, 202363840), (4, 101181920), (5, 80945536), (7, 57818240), (8, 50590960), (10, 40472768), (14, 28909120), (16, 25295480), (20, 20236384), (28, 14454560), (32, 12647740), (35, 11563648), (40, 10118192), (56, 7227280), (61, 6634880), (64, 6323870), (70, 5781824), (80, 5059096), (112, 3613640), (122, 3317440), (128, 3161935), (140, 2890912), (160, 2529548), (224, 1806820), (244, 1658720), (280, 1445456), (305, 1326976), (320, 1264774), (427, 947840), (448, 903410), (488, 829360), (560, 722728), (610, 663488), (640, 632387), (854, 473920), (896, 451705), (976, 414680), (1120, 361364), (1220, 331744), (1481, 273280), (1708, 236960), (1952, 207340), (2135, 189568), (2240, 180682), (2440, 165872), (2962, 136640), (3416, 118480), (3904, 103670), (4270, 94784), (4480, 90341), (4880, 82936), (5924, 68320), (6832, 59240), (7405, 54656), (7808, 51835), (8540, 47392), (9760, 41468), (10367, 39040), (11848, 34160), (13664, 29620), (14810, 27328), (17080, 23696), (19520, 20734)]