81328996

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2179}}^1$

素因数の和:2264

約数の個数: 48

約数和(自身を含む): 171888640

約数和(自身を除く): 90559644

約数列:

[1, 2, 4, 7, 14, 28, 31, 43, 62, 86, 124, 172, 217, 301, 434, 602, 868, 1204, 1333, 2179, 2666, 4358, 5332, 8716, 9331, 15253, 18662, 30506, 37324, 61012, 67549, 93697, 135098, 187394, 270196, 374788, 472843, 655879, 945686, 1311758, 1891372, 2623516, 2904607, 5809214, 11618428, 20332249, 40664498, 81328996]

約数ペア:

[(1, 81328996), (2, 40664498), (4, 20332249), (7, 11618428), (14, 5809214), (28, 2904607), (31, 2623516), (43, 1891372), (62, 1311758), (86, 945686), (124, 655879), (172, 472843), (217, 374788), (301, 270196), (434, 187394), (602, 135098), (868, 93697), (1204, 67549), (1333, 61012), (2179, 37324), (2666, 30506), (4358, 18662), (5332, 15253), (8716, 9331)]