4909840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4721}}^1$

素因数の和:4747

約数の個数: 40

約数和(自身を含む): 12296088

約数和(自身を除く): 7386248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 4721, 9442, 18884, 23605, 37768, 47210, 61373, 75536, 94420, 122746, 188840, 245492, 306865, 377680, 490984, 613730, 981968, 1227460, 2454920, 4909840]

約数ペア:

[(1, 4909840), (2, 2454920), (4, 1227460), (5, 981968), (8, 613730), (10, 490984), (13, 377680), (16, 306865), (20, 245492), (26, 188840), (40, 122746), (52, 94420), (65, 75536), (80, 61373), (104, 47210), (130, 37768), (208, 23605), (260, 18884), (520, 9442), (1040, 4721)]