261437124

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 678053376

約数和(自身を除く): 416616252

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 181, 188, 197, 282, 362, 394, 543, 564, 591, 611, 724, 788, 1086, 1182, 1222, 1833, 2172, 2353, 2364, 2444, 2561, 3666, 4706, 5122, 7059, 7332, 7683, 8507, 9259, 9412, 10244, 14118, 15366, 17014, 18518, 25521, 27777, 28236, 30732, 34028, 35657, 37036, 51042, 55554, 71314, 102084, 106971, 110591, 111108, 120367, 142628, 213942, 221182, 240734, 331773, 361101, 427884, 442364, 463541, 481468, 663546, 722202, 927082, 1327092, 1390623, 1444404, 1675879, 1854164, 2781246, 3351758, 5027637, 5562492, 6703516, 10055274, 20110548, 21786427, 43572854, 65359281, 87145708, 130718562, 261437124]

約数ペア:

[(1, 261437124), (2, 130718562), (3, 87145708), (4, 65359281), (6, 43572854), (12, 21786427), (13, 20110548), (26, 10055274), (39, 6703516), (47, 5562492), (52, 5027637), (78, 3351758), (94, 2781246), (141, 1854164), (156, 1675879), (181, 1444404), (188, 1390623), (197, 1327092), (282, 927082), (362, 722202), (394, 663546), (543, 481468), (564, 463541), (591, 442364), (611, 427884), (724, 361101), (788, 331773), (1086, 240734), (1182, 221182), (1222, 213942), (1833, 142628), (2172, 120367), (2353, 111108), (2364, 110591), (2444, 106971), (2561, 102084), (3666, 71314), (4706, 55554), (5122, 51042), (7059, 37036), (7332, 35657), (7683, 34028), (8507, 30732), (9259, 28236), (9412, 27777), (10244, 25521), (14118, 18518), (15366, 17014)]