280060420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{941}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 615299328

約数和(自身を除く): 335238908

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 647, 941, 1294, 1882, 2588, 3235, 3764, 4705, 6470, 9410, 12940, 14881, 18820, 21643, 29762, 43286, 59524, 74405, 86572, 108215, 148810, 216430, 297620, 432860, 608827, 1217654, 2435308, 3044135, 6088270, 12176540, 14003021, 28006042, 56012084, 70015105, 140030210, 280060420]

約数ペア:

[(1, 280060420), (2, 140030210), (4, 70015105), (5, 56012084), (10, 28006042), (20, 14003021), (23, 12176540), (46, 6088270), (92, 3044135), (115, 2435308), (230, 1217654), (460, 608827), (647, 432860), (941, 297620), (1294, 216430), (1882, 148810), (2588, 108215), (3235, 86572), (3764, 74405), (4705, 59524), (6470, 43286), (9410, 29762), (12940, 21643), (14881, 18820)]