3899440

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:709

約数の個数: 40

約数和(自身を含む): 9195840

約数和(自身を除く): 5296400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 617, 632, 790, 1234, 1264, 1580, 2468, 3085, 3160, 4936, 6170, 6320, 9872, 12340, 24680, 48743, 49360, 97486, 194972, 243715, 389944, 487430, 779888, 974860, 1949720, 3899440]

約数ペア:

[(1, 3899440), (2, 1949720), (4, 974860), (5, 779888), (8, 487430), (10, 389944), (16, 243715), (20, 194972), (40, 97486), (79, 49360), (80, 48743), (158, 24680), (316, 12340), (395, 9872), (617, 6320), (632, 6170), (790, 4936), (1234, 3160), (1264, 3085), (1580, 2468)]