19952380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2689}}^1$

素因数の和:2758

約数の個数: 48

約数和(自身を含む): 48807360

約数和(自身を除く): 28854980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2689, 3710, 5378, 7420, 10756, 13445, 18823, 26890, 37646, 53780, 75292, 94115, 142517, 188230, 285034, 376460, 570068, 712585, 997619, 1425170, 1995238, 2850340, 3990476, 4988095, 9976190, 19952380]

約数ペア:

[(1, 19952380), (2, 9976190), (4, 4988095), (5, 3990476), (7, 2850340), (10, 1995238), (14, 1425170), (20, 997619), (28, 712585), (35, 570068), (53, 376460), (70, 285034), (106, 188230), (140, 142517), (212, 94115), (265, 75292), (371, 53780), (530, 37646), (742, 26890), (1060, 18823), (1484, 13445), (1855, 10756), (2689, 7420), (3710, 5378)]