51393860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^2$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 130777920

約数和(自身を除く): 79384060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 139, 140, 190, 266, 278, 380, 532, 556, 665, 695, 973, 1330, 1390, 1946, 2641, 2660, 2780, 3892, 4865, 5282, 9730, 10564, 13205, 18487, 19321, 19460, 26410, 36974, 38642, 52820, 73948, 77284, 92435, 96605, 135247, 184870, 193210, 270494, 367099, 369740, 386420, 540988, 676235, 734198, 1352470, 1468396, 1835495, 2569693, 2704940, 3670990, 5139386, 7341980, 10278772, 12848465, 25696930, 51393860]

約数ペア:

[(1, 51393860), (2, 25696930), (4, 12848465), (5, 10278772), (7, 7341980), (10, 5139386), (14, 3670990), (19, 2704940), (20, 2569693), (28, 1835495), (35, 1468396), (38, 1352470), (70, 734198), (76, 676235), (95, 540988), (133, 386420), (139, 369740), (140, 367099), (190, 270494), (266, 193210), (278, 184870), (380, 135247), (532, 96605), (556, 92435), (665, 77284), (695, 73948), (973, 52820), (1330, 38642), (1390, 36974), (1946, 26410), (2641, 19460), (2660, 19321), (2780, 18487), (3892, 13205), (4865, 10564), (5282, 9730)]