123941320

素因数分解:

$2^3\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{2389}}^1$

素因数の和:3697

約数の個数: 32

約数和(自身を含む): 279199800

約数和(自身を除く): 155258480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1297, 2389, 2594, 4778, 5188, 6485, 9556, 10376, 11945, 12970, 19112, 23890, 25940, 47780, 51880, 95560, 3098533, 6197066, 12394132, 15492665, 24788264, 30985330, 61970660, 123941320]

約数ペア:

[(1, 123941320), (2, 61970660), (4, 30985330), (5, 24788264), (8, 15492665), (10, 12394132), (20, 6197066), (40, 3098533), (1297, 95560), (2389, 51880), (2594, 47780), (4778, 25940), (5188, 23890), (6485, 19112), (9556, 12970), (10376, 11945)]