2783997560

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{409}}^1\times {\mathrm{449}}^1$

素因数の和:1248

約数の個数: 64

約数和(自身を含む): 6309900000

約数和(自身を除く): 3525902440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 409, 449, 758, 818, 898, 1516, 1636, 1796, 1895, 2045, 2245, 3032, 3272, 3592, 3790, 4090, 4490, 7580, 8180, 8980, 15160, 16360, 17960, 155011, 170171, 183641, 310022, 340342, 367282, 620044, 680684, 734564, 775055, 850855, 918205, 1240088, 1361368, 1469128, 1550110, 1701710, 1836410, 3100220, 3403420, 3672820, 6200440, 6806840, 7345640, 69599939, 139199878, 278399756, 347999695, 556799512, 695999390, 1391998780, 2783997560]

約数ペア:

[(1, 2783997560), (2, 1391998780), (4, 695999390), (5, 556799512), (8, 347999695), (10, 278399756), (20, 139199878), (40, 69599939), (379, 7345640), (409, 6806840), (449, 6200440), (758, 3672820), (818, 3403420), (898, 3100220), (1516, 1836410), (1636, 1701710), (1796, 1550110), (1895, 1469128), (2045, 1361368), (2245, 1240088), (3032, 918205), (3272, 850855), (3592, 775055), (3790, 734564), (4090, 680684), (4490, 620044), (7580, 367282), (8180, 340342), (8980, 310022), (15160, 183641), (16360, 170171), (17960, 155011)]