4140280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1163}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 9428400

約数和(自身を除く): 5288120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1163, 1780, 2326, 3560, 4652, 5815, 9304, 11630, 23260, 46520, 103507, 207014, 414028, 517535, 828056, 1035070, 2070140, 4140280]

約数ペア:

[(1, 4140280), (2, 2070140), (4, 1035070), (5, 828056), (8, 517535), (10, 414028), (20, 207014), (40, 103507), (89, 46520), (178, 23260), (356, 11630), (445, 9304), (712, 5815), (890, 4652), (1163, 3560), (1780, 2326)]