20463553375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{557}}^1$

素因数の和:1121

約数の個数: 64

約数和(自身を含む): 27855360000

約数和(自身を除く): 7391806625

約数列:

[1, 5, 19, 25, 31, 95, 125, 155, 475, 499, 557, 589, 775, 2375, 2495, 2785, 2945, 3875, 9481, 10583, 12475, 13925, 14725, 15469, 17267, 47405, 52915, 62375, 69625, 73625, 77345, 86335, 237025, 264575, 277943, 293911, 328073, 386725, 431675, 1185125, 1322875, 1389715, 1469555, 1640365, 1933625, 2158375, 5280917, 6948575, 7347775, 8201825, 8616233, 26404585, 34742875, 36738875, 41009125, 43081165, 132022925, 163708427, 215405825, 660114625, 818542135, 1077029125, 4092710675, 20463553375]

約数ペア:

[(1, 20463553375), (5, 4092710675), (19, 1077029125), (25, 818542135), (31, 660114625), (95, 215405825), (125, 163708427), (155, 132022925), (475, 43081165), (499, 41009125), (557, 36738875), (589, 34742875), (775, 26404585), (2375, 8616233), (2495, 8201825), (2785, 7347775), (2945, 6948575), (3875, 5280917), (9481, 2158375), (10583, 1933625), (12475, 1640365), (13925, 1469555), (14725, 1389715), (15469, 1322875), (17267, 1185125), (47405, 431675), (52915, 386725), (62375, 328073), (69625, 293911), (73625, 277943), (77345, 264575), (86335, 237025)]