826630220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 1911470400

約数和(自身を除く): 1084840180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 139, 178, 257, 260, 278, 356, 445, 514, 556, 695, 890, 1028, 1157, 1285, 1390, 1780, 1807, 2314, 2570, 2780, 3341, 3614, 4628, 5140, 5785, 6682, 7228, 9035, 11570, 12371, 13364, 16705, 18070, 22873, 23140, 24742, 33410, 35723, 36140, 45746, 49484, 61855, 66820, 71446, 91492, 114365, 123710, 142892, 160823, 178615, 228730, 247420, 297349, 321646, 357230, 457460, 464399, 594698, 643292, 714460, 804115, 928798, 1189396, 1486745, 1608230, 1857596, 2321995, 2973490, 3179347, 3216460, 4643990, 5946980, 6358694, 9287980, 12717388, 15896735, 31793470, 41331511, 63586940, 82663022, 165326044, 206657555, 413315110, 826630220]

約数ペア:

[(1, 826630220), (2, 413315110), (4, 206657555), (5, 165326044), (10, 82663022), (13, 63586940), (20, 41331511), (26, 31793470), (52, 15896735), (65, 12717388), (89, 9287980), (130, 6358694), (139, 5946980), (178, 4643990), (257, 3216460), (260, 3179347), (278, 2973490), (356, 2321995), (445, 1857596), (514, 1608230), (556, 1486745), (695, 1189396), (890, 928798), (1028, 804115), (1157, 714460), (1285, 643292), (1390, 594698), (1780, 464399), (1807, 457460), (2314, 357230), (2570, 321646), (2780, 297349), (3341, 247420), (3614, 228730), (4628, 178615), (5140, 160823), (5785, 142892), (6682, 123710), (7228, 114365), (9035, 91492), (11570, 71446), (12371, 66820), (13364, 61855), (16705, 49484), (18070, 45746), (22873, 36140), (23140, 35723), (24742, 33410)]