65112920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39703}}^1$

素因数の和:39755

約数の個数: 32

約数和(自身を含む): 150081120

約数和(自身を除く): 84968200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39703, 79406, 158812, 198515, 317624, 397030, 794060, 1588120, 1627823, 3255646, 6511292, 8139115, 13022584, 16278230, 32556460, 65112920]

約数ペア:

[(1, 65112920), (2, 32556460), (4, 16278230), (5, 13022584), (8, 8139115), (10, 6511292), (20, 3255646), (40, 1627823), (41, 1588120), (82, 794060), (164, 397030), (205, 317624), (328, 198515), (410, 158812), (820, 79406), (1640, 39703)]