409085680

素因数分解:

$2^4\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{2621}}^1$

素因数の和:4585

約数の個数: 40

約数和(自身を含む): 951974784

約数和(自身を除く): 542889104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1951, 2621, 3902, 5242, 7804, 9755, 10484, 13105, 15608, 19510, 20968, 26210, 31216, 39020, 41936, 52420, 78040, 104840, 156080, 209680, 5113571, 10227142, 20454284, 25567855, 40908568, 51135710, 81817136, 102271420, 204542840, 409085680]

約数ペア:

[(1, 409085680), (2, 204542840), (4, 102271420), (5, 81817136), (8, 51135710), (10, 40908568), (16, 25567855), (20, 20454284), (40, 10227142), (80, 5113571), (1951, 209680), (2621, 156080), (3902, 104840), (5242, 78040), (7804, 52420), (9755, 41936), (10484, 39020), (13105, 31216), (15608, 26210), (19510, 20968)]