899401040

素因数分解:

$2^4\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{5641}}^1$

素因数の和:7647

約数の個数: 40

約数和(自身を含む): 2092527528

約数和(自身を除く): 1193126488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1993, 3986, 5641, 7972, 9965, 11282, 15944, 19930, 22564, 28205, 31888, 39860, 45128, 56410, 79720, 90256, 112820, 159440, 225640, 451280, 11242513, 22485026, 44970052, 56212565, 89940104, 112425130, 179880208, 224850260, 449700520, 899401040]

約数ペア:

[(1, 899401040), (2, 449700520), (4, 224850260), (5, 179880208), (8, 112425130), (10, 89940104), (16, 56212565), (20, 44970052), (40, 22485026), (80, 11242513), (1993, 451280), (3986, 225640), (5641, 159440), (7972, 112820), (9965, 90256), (11282, 79720), (15944, 56410), (19930, 45128), (22564, 39860), (28205, 31888)]