20081624

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 20094376

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 149, 298, 596, 991, 1192, 1982, 2533, 3964, 5066, 7928, 10132, 16847, 20264, 33694, 67388, 134776, 147659, 295318, 590636, 1181272, 2510203, 5020406, 10040812, 20081624]

約数ペア:

[(1, 20081624), (2, 10040812), (4, 5020406), (8, 2510203), (17, 1181272), (34, 590636), (68, 295318), (136, 147659), (149, 134776), (298, 67388), (596, 33694), (991, 20264), (1192, 16847), (1982, 10132), (2533, 7928), (3964, 5066)]