38953640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 96284160

約数和(自身を除く): 57330520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 223, 397, 440, 446, 794, 892, 1115, 1588, 1784, 1985, 2230, 2453, 3176, 3970, 4367, 4460, 4906, 7940, 8734, 8920, 9812, 12265, 15880, 17468, 19624, 21835, 24530, 34936, 43670, 49060, 87340, 88531, 98120, 174680, 177062, 354124, 442655, 708248, 885310, 973841, 1770620, 1947682, 3541240, 3895364, 4869205, 7790728, 9738410, 19476820, 38953640]

約数ペア:

[(1, 38953640), (2, 19476820), (4, 9738410), (5, 7790728), (8, 4869205), (10, 3895364), (11, 3541240), (20, 1947682), (22, 1770620), (40, 973841), (44, 885310), (55, 708248), (88, 442655), (110, 354124), (220, 177062), (223, 174680), (397, 98120), (440, 88531), (446, 87340), (794, 49060), (892, 43670), (1115, 34936), (1588, 24530), (1784, 21835), (1985, 19624), (2230, 17468), (2453, 15880), (3176, 12265), (3970, 9812), (4367, 8920), (4460, 8734), (4906, 7940)]