90730160

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12743}}^1$

素因数の和:12845

約数の個数: 40

約数和(自身を含む): 213334560

約数和(自身を除く): 122604400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 12743, 25486, 50972, 63715, 101944, 127430, 203888, 254860, 509720, 1019440, 1134127, 2268254, 4536508, 5670635, 9073016, 11341270, 18146032, 22682540, 45365080, 90730160]

約数ペア:

[(1, 90730160), (2, 45365080), (4, 22682540), (5, 18146032), (8, 11341270), (10, 9073016), (16, 5670635), (20, 4536508), (40, 2268254), (80, 1134127), (89, 1019440), (178, 509720), (356, 254860), (445, 203888), (712, 127430), (890, 101944), (1424, 63715), (1780, 50972), (3560, 25486), (7120, 12743)]