51774620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 117518688

約数和(自身を除く): 65744068

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 101, 142, 190, 202, 284, 355, 361, 380, 404, 505, 710, 722, 1010, 1349, 1420, 1444, 1805, 1919, 2020, 2698, 3610, 3838, 5396, 6745, 7171, 7220, 7676, 9595, 13490, 14342, 19190, 25631, 26980, 28684, 35855, 36461, 38380, 51262, 71710, 72922, 102524, 128155, 136249, 143420, 145844, 182305, 256310, 272498, 364610, 512620, 544996, 681245, 729220, 1362490, 2588731, 2724980, 5177462, 10354924, 12943655, 25887310, 51774620]

約数ペア:

[(1, 51774620), (2, 25887310), (4, 12943655), (5, 10354924), (10, 5177462), (19, 2724980), (20, 2588731), (38, 1362490), (71, 729220), (76, 681245), (95, 544996), (101, 512620), (142, 364610), (190, 272498), (202, 256310), (284, 182305), (355, 145844), (361, 143420), (380, 136249), (404, 128155), (505, 102524), (710, 72922), (722, 71710), (1010, 51262), (1349, 38380), (1420, 36461), (1444, 35855), (1805, 28684), (1919, 26980), (2020, 25631), (2698, 19190), (3610, 14342), (3838, 13490), (5396, 9595), (6745, 7676), (7171, 7220)]