40306840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{143953}}^1$

素因数の和:143971

約数の個数: 32

約数和(自身を含む): 103646880

約数和(自身を除く): 63340040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 143953, 287906, 575812, 719765, 1007671, 1151624, 1439530, 2015342, 2879060, 4030684, 5038355, 5758120, 8061368, 10076710, 20153420, 40306840]

約数ペア:

[(1, 40306840), (2, 20153420), (4, 10076710), (5, 8061368), (7, 5758120), (8, 5038355), (10, 4030684), (14, 2879060), (20, 2015342), (28, 1439530), (35, 1151624), (40, 1007671), (56, 719765), (70, 575812), (140, 287906), (280, 143953)]