20776479425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{15859}}^1$

素因数の和:16050

約数の個数: 48

約数和(自身を含む): 28909608000

約数和(自身を除く): 8133128575

約数列:

[1, 5, 13, 25, 29, 65, 139, 145, 325, 377, 695, 725, 1807, 1885, 3475, 4031, 9035, 9425, 15859, 20155, 45175, 52403, 79295, 100775, 206167, 262015, 396475, 459911, 1030835, 1310075, 2204401, 2299555, 5154175, 5978843, 11022005, 11497775, 28657213, 29894215, 55110025, 63927629, 143286065, 149471075, 319638145, 716430325, 831059177, 1598190725, 4155295885, 20776479425]

約数ペア:

[(1, 20776479425), (5, 4155295885), (13, 1598190725), (25, 831059177), (29, 716430325), (65, 319638145), (139, 149471075), (145, 143286065), (325, 63927629), (377, 55110025), (695, 29894215), (725, 28657213), (1807, 11497775), (1885, 11022005), (3475, 5978843), (4031, 5154175), (9035, 2299555), (9425, 2204401), (15859, 1310075), (20155, 1030835), (45175, 459911), (52403, 396475), (79295, 262015), (100775, 206167)]