890409465

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 1770253056

約数和(自身を除く): 879843591

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 197, 207, 253, 345, 397, 495, 591, 759, 985, 1035, 1191, 1265, 1773, 1985, 2167, 2277, 2955, 3573, 3795, 4367, 4531, 5955, 6501, 8865, 9131, 10835, 11385, 13101, 13593, 17865, 19503, 21835, 22655, 27393, 32505, 39303, 40779, 45655, 49841, 65505, 67965, 78209, 82179, 97515, 100441, 136965, 149523, 196515, 203895, 234627, 249205, 301323, 391045, 410895, 448569, 502205, 703881, 747615, 860299, 903969, 1173135, 1506615, 1798807, 2242845, 2580897, 3519405, 4301495, 4519845, 5396421, 7742691, 8994035, 12904485, 16189263, 19786877, 26982105, 38713455, 59360631, 80946315, 98934385, 178081893, 296803155, 890409465]

約数ペア:

[(1, 890409465), (3, 296803155), (5, 178081893), (9, 98934385), (11, 80946315), (15, 59360631), (23, 38713455), (33, 26982105), (45, 19786877), (55, 16189263), (69, 12904485), (99, 8994035), (115, 7742691), (165, 5396421), (197, 4519845), (207, 4301495), (253, 3519405), (345, 2580897), (397, 2242845), (495, 1798807), (591, 1506615), (759, 1173135), (985, 903969), (1035, 860299), (1191, 747615), (1265, 703881), (1773, 502205), (1985, 448569), (2167, 410895), (2277, 391045), (2955, 301323), (3573, 249205), (3795, 234627), (4367, 203895), (4531, 196515), (5955, 149523), (6501, 136965), (8865, 100441), (9131, 97515), (10835, 82179), (11385, 78209), (13101, 67965), (13593, 65505), (17865, 49841), (19503, 45655), (21835, 40779), (22655, 39303), (27393, 32505)]