20465730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{331}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 54979200

約数和(自身を除く): 34513470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 229, 270, 331, 458, 662, 687, 993, 1145, 1374, 1655, 1986, 2061, 2290, 2979, 3310, 3435, 4122, 4965, 5958, 6183, 6870, 8937, 9930, 10305, 12366, 14895, 17874, 20610, 29790, 30915, 44685, 61830, 75799, 89370, 151598, 227397, 378995, 454794, 682191, 757990, 1136985, 1364382, 2046573, 2273970, 3410955, 4093146, 6821910, 10232865, 20465730]

約数ペア:

[(1, 20465730), (2, 10232865), (3, 6821910), (5, 4093146), (6, 3410955), (9, 2273970), (10, 2046573), (15, 1364382), (18, 1136985), (27, 757990), (30, 682191), (45, 454794), (54, 378995), (90, 227397), (135, 151598), (229, 89370), (270, 75799), (331, 61830), (458, 44685), (662, 30915), (687, 29790), (993, 20610), (1145, 17874), (1374, 14895), (1655, 12366), (1986, 10305), (2061, 9930), (2290, 8937), (2979, 6870), (3310, 6183), (3435, 5958), (4122, 4965)]