99826880

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1987}}^1$

素因数の和:2161

約数の個数: 56

約数和(自身を含む): 239347248

約数和(自身を除く): 139520368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 628, 785, 1256, 1570, 1987, 2512, 3140, 3974, 5024, 6280, 7948, 9935, 10048, 12560, 15896, 19870, 25120, 31792, 39740, 50240, 63584, 79480, 127168, 158960, 311959, 317920, 623918, 635840, 1247836, 1559795, 2495672, 3119590, 4991344, 6239180, 9982688, 12478360, 19965376, 24956720, 49913440, 99826880]

約数ペア:

[(1, 99826880), (2, 49913440), (4, 24956720), (5, 19965376), (8, 12478360), (10, 9982688), (16, 6239180), (20, 4991344), (32, 3119590), (40, 2495672), (64, 1559795), (80, 1247836), (157, 635840), (160, 623918), (314, 317920), (320, 311959), (628, 158960), (785, 127168), (1256, 79480), (1570, 63584), (1987, 50240), (2512, 39740), (3140, 31792), (3974, 25120), (5024, 19870), (6280, 15896), (7948, 12560), (9935, 10048)]