20751210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2377}}^1$

素因数の和:2487

約数の個数: 48

約数和(自身を含む): 54532296

約数和(自身を除く): 33781086

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 97, 194, 291, 485, 582, 873, 970, 1455, 1746, 2377, 2910, 4365, 4754, 7131, 8730, 11885, 14262, 21393, 23770, 35655, 42786, 71310, 106965, 213930, 230569, 461138, 691707, 1152845, 1383414, 2075121, 2305690, 3458535, 4150242, 6917070, 10375605, 20751210]

約数ペア:

[(1, 20751210), (2, 10375605), (3, 6917070), (5, 4150242), (6, 3458535), (9, 2305690), (10, 2075121), (15, 1383414), (18, 1152845), (30, 691707), (45, 461138), (90, 230569), (97, 213930), (194, 106965), (291, 71310), (485, 42786), (582, 35655), (873, 23770), (970, 21393), (1455, 14262), (1746, 11885), (2377, 8730), (2910, 7131), (4365, 4754)]