20143777745

素因数分解:

$5^1\times 7^5\times {\mathrm{13}}^1\times {\mathrm{18439}}^1$

素因数の和:18492

約数の個数: 48

約数和(自身を含む): 30372007680

約数和(自身を除く): 10228229935

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 343, 455, 637, 1715, 2401, 3185, 4459, 12005, 16807, 18439, 22295, 31213, 84035, 92195, 129073, 156065, 218491, 239707, 645365, 903511, 1092455, 1198535, 1677949, 4517555, 6324577, 8389745, 11745643, 31622885, 44272039, 58728215, 82219501, 221360195, 309904273, 411097505, 575536507, 1549521365, 2877682535, 4028755549, 20143777745]

約数ペア:

[(1, 20143777745), (5, 4028755549), (7, 2877682535), (13, 1549521365), (35, 575536507), (49, 411097505), (65, 309904273), (91, 221360195), (245, 82219501), (343, 58728215), (455, 44272039), (637, 31622885), (1715, 11745643), (2401, 8389745), (3185, 6324577), (4459, 4517555), (12005, 1677949), (16807, 1198535), (18439, 1092455), (22295, 903511), (31213, 645365), (84035, 239707), (92195, 218491), (129073, 156065)]