201775180

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 430204320

約数和(自身を除く): 228429140

約数列:

[1, 2, 4, 5, 10, 20, 139, 181, 278, 362, 401, 556, 695, 724, 802, 905, 1390, 1604, 1810, 2005, 2780, 3620, 4010, 8020, 25159, 50318, 55739, 72581, 100636, 111478, 125795, 145162, 222956, 251590, 278695, 290324, 362905, 503180, 557390, 725810, 1114780, 1451620, 10088759, 20177518, 40355036, 50443795, 100887590, 201775180]

約数ペア:

[(1, 201775180), (2, 100887590), (4, 50443795), (5, 40355036), (10, 20177518), (20, 10088759), (139, 1451620), (181, 1114780), (278, 725810), (362, 557390), (401, 503180), (556, 362905), (695, 290324), (724, 278695), (802, 251590), (905, 222956), (1390, 145162), (1604, 125795), (1810, 111478), (2005, 100636), (2780, 72581), (3620, 55739), (4010, 50318), (8020, 25159)]