81785570

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{4639}}^1$

素因数の和:4730

約数の個数: 32

約数和(自身を含む): 154344960

約数和(自身を除く): 72559390

約数列:

[1, 2, 5, 10, 41, 43, 82, 86, 205, 215, 410, 430, 1763, 3526, 4639, 8815, 9278, 17630, 23195, 46390, 190199, 199477, 380398, 398954, 950995, 997385, 1901990, 1994770, 8178557, 16357114, 40892785, 81785570]

約数ペア:

[(1, 81785570), (2, 40892785), (5, 16357114), (10, 8178557), (41, 1994770), (43, 1901990), (82, 997385), (86, 950995), (205, 398954), (215, 380398), (410, 199477), (430, 190199), (1763, 46390), (3526, 23195), (4639, 17630), (8815, 9278)]