211713940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{1423}}^1$

素因数の和:1648

約数の個数: 48

約数和(自身を含む): 457890048

約数和(自身を除く): 246176108

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 173, 215, 346, 430, 692, 860, 865, 1423, 1730, 2846, 3460, 5692, 7115, 7439, 14230, 14878, 28460, 29756, 37195, 61189, 74390, 122378, 148780, 244756, 246179, 305945, 492358, 611890, 984716, 1223780, 1230895, 2461790, 4923580, 10585697, 21171394, 42342788, 52928485, 105856970, 211713940]

約数ペア:

[(1, 211713940), (2, 105856970), (4, 52928485), (5, 42342788), (10, 21171394), (20, 10585697), (43, 4923580), (86, 2461790), (172, 1230895), (173, 1223780), (215, 984716), (346, 611890), (430, 492358), (692, 305945), (860, 246179), (865, 244756), (1423, 148780), (1730, 122378), (2846, 74390), (3460, 61189), (5692, 37195), (7115, 29756), (7439, 28460), (14230, 14878)]