19247980

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5563}}^1$

素因数の和:5745

約数の個数: 24

約数和(自身を含む): 40661712

約数和(自身を除く): 21413732

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5563, 11126, 22252, 27815, 55630, 111260, 962399, 1924798, 3849596, 4811995, 9623990, 19247980]

約数ペア:

[(1, 19247980), (2, 9623990), (4, 4811995), (5, 3849596), (10, 1924798), (20, 962399), (173, 111260), (346, 55630), (692, 27815), (865, 22252), (1730, 11126), (3460, 5563)]