221569700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2837}}^1$

素因数の和:2933

約数の個数: 72

約数和(自身を含む): 532090944

約数和(自身を除く): 310521244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 220, 275, 284, 355, 550, 710, 781, 1100, 1420, 1562, 1775, 2837, 3124, 3550, 3905, 5674, 7100, 7810, 11348, 14185, 15620, 19525, 28370, 31207, 39050, 56740, 62414, 70925, 78100, 124828, 141850, 156035, 201427, 283700, 312070, 402854, 624140, 780175, 805708, 1007135, 1560350, 2014270, 2215697, 3120700, 4028540, 4431394, 5035675, 8862788, 10071350, 11078485, 20142700, 22156970, 44313940, 55392425, 110784850, 221569700]

約数ペア:

[(1, 221569700), (2, 110784850), (4, 55392425), (5, 44313940), (10, 22156970), (11, 20142700), (20, 11078485), (22, 10071350), (25, 8862788), (44, 5035675), (50, 4431394), (55, 4028540), (71, 3120700), (100, 2215697), (110, 2014270), (142, 1560350), (220, 1007135), (275, 805708), (284, 780175), (355, 624140), (550, 402854), (710, 312070), (781, 283700), (1100, 201427), (1420, 156035), (1562, 141850), (1775, 124828), (2837, 78100), (3124, 70925), (3550, 62414), (3905, 56740), (5674, 39050), (7100, 31207), (7810, 28370), (11348, 19525), (14185, 15620)]