19809969680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{601}}^1\times {\mathrm{13291}}^1$

素因数の和:13936

約数の個数: 80

約数和(自身を含む): 47626618368

約数和(自身を除く): 27816648688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 601, 620, 1202, 1240, 2404, 2480, 3005, 4808, 6010, 9616, 12020, 13291, 18631, 24040, 26582, 37262, 48080, 53164, 66455, 74524, 93155, 106328, 132910, 149048, 186310, 212656, 265820, 298096, 372620, 412021, 531640, 745240, 824042, 1063280, 1490480, 1648084, 2060105, 3296168, 4120210, 6592336, 7987891, 8240420, 15975782, 16480840, 31951564, 32961680, 39939455, 63903128, 79878910, 127806256, 159757820, 247624621, 319515640, 495249242, 639031280, 990498484, 1238123105, 1980996968, 2476246210, 3961993936, 4952492420, 9904984840, 19809969680]

約数ペア:

[(1, 19809969680), (2, 9904984840), (4, 4952492420), (5, 3961993936), (8, 2476246210), (10, 1980996968), (16, 1238123105), (20, 990498484), (31, 639031280), (40, 495249242), (62, 319515640), (80, 247624621), (124, 159757820), (155, 127806256), (248, 79878910), (310, 63903128), (496, 39939455), (601, 32961680), (620, 31951564), (1202, 16480840), (1240, 15975782), (2404, 8240420), (2480, 7987891), (3005, 6592336), (4808, 4120210), (6010, 3296168), (9616, 2060105), (12020, 1648084), (13291, 1490480), (18631, 1063280), (24040, 824042), (26582, 745240), (37262, 531640), (48080, 412021), (53164, 372620), (66455, 298096), (74524, 265820), (93155, 212656), (106328, 186310), (132910, 149048)]