25666450

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 51068160

約数和(自身を除く): 25401710

約数列:

[1, 2, 5, 10, 25, 29, 31, 50, 58, 62, 145, 155, 290, 310, 571, 725, 775, 899, 1142, 1450, 1550, 1798, 2855, 4495, 5710, 8990, 14275, 16559, 17701, 22475, 28550, 33118, 35402, 44950, 82795, 88505, 165590, 177010, 413975, 442525, 513329, 827950, 885050, 1026658, 2566645, 5133290, 12833225, 25666450]

約数ペア:

[(1, 25666450), (2, 12833225), (5, 5133290), (10, 2566645), (25, 1026658), (29, 885050), (31, 827950), (50, 513329), (58, 442525), (62, 413975), (145, 177010), (155, 165590), (290, 88505), (310, 82795), (571, 44950), (725, 35402), (775, 33118), (899, 28550), (1142, 22475), (1450, 17701), (1550, 16559), (1798, 14275), (2855, 8990), (4495, 5710)]