201779840

素因数分解:

$2^7\times 5^1\times {\mathrm{315281}}^1$

素因数の和:315300

約数の個数: 32

約数和(自身を含む): 482381460

約数和(自身を除く): 280601620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 315281, 630562, 1261124, 1576405, 2522248, 3152810, 5044496, 6305620, 10088992, 12611240, 20177984, 25222480, 40355968, 50444960, 100889920, 201779840]

約数ペア:

[(1, 201779840), (2, 100889920), (4, 50444960), (5, 40355968), (8, 25222480), (10, 20177984), (16, 12611240), (20, 10088992), (32, 6305620), (40, 5044496), (64, 3152810), (80, 2522248), (128, 1576405), (160, 1261124), (320, 630562), (640, 315281)]