20415671152

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1\times {\mathrm{3727}}^1$

素因数の和:4278

約数の個数: 80

約数和(自身を含む): 42861859840

約数和(自身を除く): 22446188688

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 487, 592, 703, 974, 1406, 1948, 2812, 3727, 3896, 5624, 7454, 7792, 9253, 11248, 14908, 18019, 18506, 29816, 36038, 37012, 59632, 70813, 72076, 74024, 137899, 141626, 144152, 148048, 275798, 283252, 288304, 342361, 551596, 566504, 684722, 1103192, 1133008, 1369444, 1815049, 2206384, 2620081, 2738888, 3630098, 5240162, 5477776, 7260196, 10480324, 14520392, 20960648, 29040784, 34485931, 41921296, 67156813, 68971862, 134313626, 137943724, 268627252, 275887448, 537254504, 551774896, 1074509008, 1275979447, 2551958894, 5103917788, 10207835576, 20415671152]

約数ペア:

[(1, 20415671152), (2, 10207835576), (4, 5103917788), (8, 2551958894), (16, 1275979447), (19, 1074509008), (37, 551774896), (38, 537254504), (74, 275887448), (76, 268627252), (148, 137943724), (152, 134313626), (296, 68971862), (304, 67156813), (487, 41921296), (592, 34485931), (703, 29040784), (974, 20960648), (1406, 14520392), (1948, 10480324), (2812, 7260196), (3727, 5477776), (3896, 5240162), (5624, 3630098), (7454, 2738888), (7792, 2620081), (9253, 2206384), (11248, 1815049), (14908, 1369444), (18019, 1133008), (18506, 1103192), (29816, 684722), (36038, 566504), (37012, 551596), (59632, 342361), (70813, 288304), (72076, 283252), (74024, 275798), (137899, 148048), (141626, 144152)]