20215051315

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{311}}^1\times {\mathrm{2347}}^1$

素因数の和:2883

約数の個数: 32

約数和(自身を含む): 25317826560

約数和(自身を除く): 5102775245

約数列:

[1, 5, 29, 145, 191, 311, 955, 1555, 2347, 5539, 9019, 11735, 27695, 45095, 59401, 68063, 297005, 340315, 448277, 729917, 1722629, 2241385, 3649585, 8613145, 13000033, 21167593, 65000165, 105837965, 139414147, 697070735, 4043010263, 20215051315]

約数ペア:

[(1, 20215051315), (5, 4043010263), (29, 697070735), (145, 139414147), (191, 105837965), (311, 65000165), (955, 21167593), (1555, 13000033), (2347, 8613145), (5539, 3649585), (9019, 2241385), (11735, 1722629), (27695, 729917), (45095, 448277), (59401, 340315), (68063, 297005)]