28943840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{9521}}^1$

素因数の和:9555

約数の個数: 48

約数和(自身を含む): 71986320

約数和(自身を除く): 43042480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 9521, 19042, 38084, 47605, 76168, 95210, 152336, 180899, 190420, 304672, 361798, 380840, 723596, 761680, 904495, 1447192, 1523360, 1808990, 2894384, 3617980, 5788768, 7235960, 14471920, 28943840]

約数ペア:

[(1, 28943840), (2, 14471920), (4, 7235960), (5, 5788768), (8, 3617980), (10, 2894384), (16, 1808990), (19, 1523360), (20, 1447192), (32, 904495), (38, 761680), (40, 723596), (76, 380840), (80, 361798), (95, 304672), (152, 190420), (160, 180899), (190, 152336), (304, 95210), (380, 76168), (608, 47605), (760, 38084), (1520, 19042), (3040, 9521)]