4638640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2521}}^1$

素因数の和:2557

約数の個数: 40

約数和(自身を含む): 11258208

約数和(自身を除く): 6619568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 2521, 5042, 10084, 12605, 20168, 25210, 40336, 50420, 57983, 100840, 115966, 201680, 231932, 289915, 463864, 579830, 927728, 1159660, 2319320, 4638640]

約数ペア:

[(1, 4638640), (2, 2319320), (4, 1159660), (5, 927728), (8, 579830), (10, 463864), (16, 289915), (20, 231932), (23, 201680), (40, 115966), (46, 100840), (80, 57983), (92, 50420), (115, 40336), (184, 25210), (230, 20168), (368, 12605), (460, 10084), (920, 5042), (1840, 2521)]