209995916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 405390720

約数和(自身を除く): 195394804

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 239, 244, 277, 478, 554, 793, 956, 1108, 1586, 3107, 3172, 3601, 6214, 7202, 12428, 14404, 14579, 16897, 29158, 33794, 58316, 66203, 67588, 132406, 189527, 219661, 264812, 379054, 439322, 758108, 860639, 878644, 1721278, 3442556, 4038383, 8076766, 16153532, 52498979, 104997958, 209995916]

約数ペア:

[(1, 209995916), (2, 104997958), (4, 52498979), (13, 16153532), (26, 8076766), (52, 4038383), (61, 3442556), (122, 1721278), (239, 878644), (244, 860639), (277, 758108), (478, 439322), (554, 379054), (793, 264812), (956, 219661), (1108, 189527), (1586, 132406), (3107, 67588), (3172, 66203), (3601, 58316), (6214, 33794), (7202, 29158), (12428, 16897), (14404, 14579)]