19937850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2179}}^1$

素因数の和:2255

約数の個数: 48

約数和(自身を含む): 50279520

約数和(自身を除く): 30341670

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 61, 75, 122, 150, 183, 305, 366, 610, 915, 1525, 1830, 2179, 3050, 4358, 4575, 6537, 9150, 10895, 13074, 21790, 32685, 54475, 65370, 108950, 132919, 163425, 265838, 326850, 398757, 664595, 797514, 1329190, 1993785, 3322975, 3987570, 6645950, 9968925, 19937850]

約数ペア:

[(1, 19937850), (2, 9968925), (3, 6645950), (5, 3987570), (6, 3322975), (10, 1993785), (15, 1329190), (25, 797514), (30, 664595), (50, 398757), (61, 326850), (75, 265838), (122, 163425), (150, 132919), (183, 108950), (305, 65370), (366, 54475), (610, 32685), (915, 21790), (1525, 13074), (1830, 10895), (2179, 9150), (3050, 6537), (4358, 4575)]