20178906436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{35533}}^1$

素因数の和:35780

約数の個数: 48

約数和(自身を含む): 38834966464

約数和(自身を除く): 18656060028

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 163, 268, 326, 652, 871, 1742, 2119, 3484, 4238, 8476, 10921, 21842, 35533, 43684, 71066, 141973, 142132, 283946, 461929, 567892, 923858, 1847716, 2380711, 4761422, 5791879, 9522844, 11583758, 23167516, 30949243, 61898486, 75294427, 123796972, 150588854, 301177708, 388055893, 776111786, 1552223572, 5044726609, 10089453218, 20178906436]

約数ペア:

[(1, 20178906436), (2, 10089453218), (4, 5044726609), (13, 1552223572), (26, 776111786), (52, 388055893), (67, 301177708), (134, 150588854), (163, 123796972), (268, 75294427), (326, 61898486), (652, 30949243), (871, 23167516), (1742, 11583758), (2119, 9522844), (3484, 5791879), (4238, 4761422), (8476, 2380711), (10921, 1847716), (21842, 923858), (35533, 567892), (43684, 461929), (71066, 283946), (141973, 142132)]