220126840

素因数分解:

$2^3\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{4243}}^1$

素因数の和:5551

約数の個数: 32

約数和(自身を含む): 495784080

約数和(自身を除く): 275657240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1297, 2594, 4243, 5188, 6485, 8486, 10376, 12970, 16972, 21215, 25940, 33944, 42430, 51880, 84860, 169720, 5503171, 11006342, 22012684, 27515855, 44025368, 55031710, 110063420, 220126840]

約数ペア:

[(1, 220126840), (2, 110063420), (4, 55031710), (5, 44025368), (8, 27515855), (10, 22012684), (20, 11006342), (40, 5503171), (1297, 169720), (2594, 84860), (4243, 51880), (5188, 42430), (6485, 33944), (8486, 25940), (10376, 21215), (12970, 16972)]