19774910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1307}}^1$

素因数の和:1420

約数の個数: 32

約数和(自身を含む): 38141280

約数和(自身を除く): 18366370

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1307, 1513, 2614, 3026, 6535, 7565, 13070, 15130, 22219, 44438, 111095, 116323, 222190, 232646, 581615, 1163230, 1977491, 3954982, 9887455, 19774910]

約数ペア:

[(1, 19774910), (2, 9887455), (5, 3954982), (10, 1977491), (17, 1163230), (34, 581615), (85, 232646), (89, 222190), (170, 116323), (178, 111095), (445, 44438), (890, 22219), (1307, 15130), (1513, 13070), (2614, 7565), (3026, 6535)]