20512487975

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{11579}}^1$

素因数の和:11840

約数の個数: 48

約数和(自身を含む): 29775237120

約数和(自身を除く): 9262749145

約数列:

[1, 5, 7, 25, 35, 53, 175, 191, 265, 371, 955, 1325, 1337, 1855, 4775, 6685, 9275, 10123, 11579, 33425, 50615, 57895, 70861, 81053, 253075, 289475, 354305, 405265, 613687, 1771525, 2026325, 2211589, 3068435, 4295809, 11057945, 15342175, 15481123, 21479045, 55289725, 77405615, 107395225, 117214217, 387028075, 586071085, 820499519, 2930355425, 4102497595, 20512487975]

約数ペア:

[(1, 20512487975), (5, 4102497595), (7, 2930355425), (25, 820499519), (35, 586071085), (53, 387028075), (175, 117214217), (191, 107395225), (265, 77405615), (371, 55289725), (955, 21479045), (1325, 15481123), (1337, 15342175), (1855, 11057945), (4775, 4295809), (6685, 3068435), (9275, 2211589), (10123, 2026325), (11579, 1771525), (33425, 613687), (50615, 405265), (57895, 354305), (70861, 289475), (81053, 253075)]