156975396325

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{1787}}^1$

素因数の和:2299

約数の個数: 72

約数和(自身を含む): 217619196480

約数和(自身を除く): 60643800155

約数列:

[1, 5, 11, 25, 55, 71, 121, 275, 355, 409, 605, 781, 1775, 1787, 2045, 3025, 3905, 4499, 8591, 8935, 10225, 19525, 19657, 22495, 29039, 42955, 44675, 49489, 98285, 112475, 126877, 145195, 214775, 216227, 247445, 319429, 491425, 634385, 725975, 730883, 1081135, 1237225, 1395647, 1597145, 3171925, 3513719, 3654415, 5405675, 6978235, 7985725, 8039713, 15352117, 17568595, 18272075, 34891175, 40198565, 51892693, 76760585, 87842975, 88436843, 200992825, 259463465, 383802925, 442184215, 570819623, 1297317325, 2210921075, 2854098115, 6279015853, 14270490575, 31395079265, 156975396325]

約数ペア:

[(1, 156975396325), (5, 31395079265), (11, 14270490575), (25, 6279015853), (55, 2854098115), (71, 2210921075), (121, 1297317325), (275, 570819623), (355, 442184215), (409, 383802925), (605, 259463465), (781, 200992825), (1775, 88436843), (1787, 87842975), (2045, 76760585), (3025, 51892693), (3905, 40198565), (4499, 34891175), (8591, 18272075), (8935, 17568595), (10225, 15352117), (19525, 8039713), (19657, 7985725), (22495, 6978235), (29039, 5405675), (42955, 3654415), (44675, 3513719), (49489, 3171925), (98285, 1597145), (112475, 1395647), (126877, 1237225), (145195, 1081135), (214775, 730883), (216227, 725975), (247445, 634385), (319429, 491425)]