85868980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2539}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 192024000

約数和(自身を除く): 106155020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 2539, 3382, 5078, 6764, 8455, 10156, 12695, 16910, 25390, 33820, 48241, 50780, 96482, 192964, 225971, 241205, 451942, 482410, 903884, 964820, 1129855, 2259710, 4293449, 4519420, 8586898, 17173796, 21467245, 42934490, 85868980]

約数ペア:

[(1, 85868980), (2, 42934490), (4, 21467245), (5, 17173796), (10, 8586898), (19, 4519420), (20, 4293449), (38, 2259710), (76, 1129855), (89, 964820), (95, 903884), (178, 482410), (190, 451942), (356, 241205), (380, 225971), (445, 192964), (890, 96482), (1691, 50780), (1780, 48241), (2539, 33820), (3382, 25390), (5078, 16910), (6764, 12695), (8455, 10156)]