196985780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 440582184

約数和(自身を除く): 243596404

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 277, 310, 370, 554, 620, 740, 961, 1108, 1147, 1385, 1922, 2294, 2770, 3844, 4588, 4805, 5540, 5735, 8587, 9610, 10249, 11470, 17174, 19220, 20498, 22940, 34348, 35557, 40996, 42935, 51245, 71114, 85870, 102490, 142228, 171740, 177785, 204980, 266197, 317719, 355570, 532394, 635438, 711140, 1064788, 1270876, 1330985, 1588595, 2661970, 3177190, 5323940, 6354380, 9849289, 19698578, 39397156, 49246445, 98492890, 196985780]

約数ペア:

[(1, 196985780), (2, 98492890), (4, 49246445), (5, 39397156), (10, 19698578), (20, 9849289), (31, 6354380), (37, 5323940), (62, 3177190), (74, 2661970), (124, 1588595), (148, 1330985), (155, 1270876), (185, 1064788), (277, 711140), (310, 635438), (370, 532394), (554, 355570), (620, 317719), (740, 266197), (961, 204980), (1108, 177785), (1147, 171740), (1385, 142228), (1922, 102490), (2294, 85870), (2770, 71114), (3844, 51245), (4588, 42935), (4805, 40996), (5540, 35557), (5735, 34348), (8587, 22940), (9610, 20498), (10249, 19220), (11470, 17174)]