19707900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 57496320

約数和(自身を除く): 37788420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 179, 300, 358, 367, 537, 716, 734, 895, 1074, 1101, 1468, 1790, 1835, 2148, 2202, 2685, 3580, 3670, 4404, 4475, 5370, 5505, 7340, 8950, 9175, 10740, 11010, 13425, 17900, 18350, 22020, 26850, 27525, 36700, 53700, 55050, 65693, 110100, 131386, 197079, 262772, 328465, 394158, 656930, 788316, 985395, 1313860, 1642325, 1970790, 3284650, 3941580, 4926975, 6569300, 9853950, 19707900]

約数ペア:

[(1, 19707900), (2, 9853950), (3, 6569300), (4, 4926975), (5, 3941580), (6, 3284650), (10, 1970790), (12, 1642325), (15, 1313860), (20, 985395), (25, 788316), (30, 656930), (50, 394158), (60, 328465), (75, 262772), (100, 197079), (150, 131386), (179, 110100), (300, 65693), (358, 55050), (367, 53700), (537, 36700), (716, 27525), (734, 26850), (895, 22020), (1074, 18350), (1101, 17900), (1468, 13425), (1790, 11010), (1835, 10740), (2148, 9175), (2202, 8950), (2685, 7340), (3580, 5505), (3670, 5370), (4404, 4475)]