19958100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{937}}^1$

素因数の和:1025

約数の個数: 72

約数和(自身を含む): 58621248

約数和(自身を除く): 38663148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 71, 75, 100, 142, 150, 213, 284, 300, 355, 426, 710, 852, 937, 1065, 1420, 1775, 1874, 2130, 2811, 3550, 3748, 4260, 4685, 5325, 5622, 7100, 9370, 10650, 11244, 14055, 18740, 21300, 23425, 28110, 46850, 56220, 66527, 70275, 93700, 133054, 140550, 199581, 266108, 281100, 332635, 399162, 665270, 798324, 997905, 1330540, 1663175, 1995810, 3326350, 3991620, 4989525, 6652700, 9979050, 19958100]

約数ペア:

[(1, 19958100), (2, 9979050), (3, 6652700), (4, 4989525), (5, 3991620), (6, 3326350), (10, 1995810), (12, 1663175), (15, 1330540), (20, 997905), (25, 798324), (30, 665270), (50, 399162), (60, 332635), (71, 281100), (75, 266108), (100, 199581), (142, 140550), (150, 133054), (213, 93700), (284, 70275), (300, 66527), (355, 56220), (426, 46850), (710, 28110), (852, 23425), (937, 21300), (1065, 18740), (1420, 14055), (1775, 11244), (1874, 10650), (2130, 9370), (2811, 7100), (3550, 5622), (3748, 5325), (4260, 4685)]