19946390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1721}}^1$

素因数の和:1808

約数の個数: 32

約数和(自身を含む): 38435040

約数和(自身を除く): 18488650

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1721, 2318, 3442, 5795, 8605, 11590, 17210, 32699, 65398, 104981, 163495, 209962, 326990, 524905, 1049810, 1994639, 3989278, 9973195, 19946390]

約数ペア:

[(1, 19946390), (2, 9973195), (5, 3989278), (10, 1994639), (19, 1049810), (38, 524905), (61, 326990), (95, 209962), (122, 163495), (190, 104981), (305, 65398), (610, 32699), (1159, 17210), (1721, 11590), (2318, 8605), (3442, 5795)]