390644500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^2\times {\mathrm{929}}^1$

素因数の和:1006

約数の個数: 72

約数和(自身を含む): 884552760

約数和(自身を除く): 493908260

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 290, 500, 580, 725, 841, 929, 1450, 1682, 1858, 2900, 3364, 3625, 3716, 4205, 4645, 7250, 8410, 9290, 14500, 16820, 18580, 21025, 23225, 26941, 42050, 46450, 53882, 84100, 92900, 105125, 107764, 116125, 134705, 210250, 232250, 269410, 420500, 464500, 538820, 673525, 781289, 1347050, 1562578, 2694100, 3125156, 3367625, 3906445, 6735250, 7812890, 13470500, 15625780, 19532225, 39064450, 78128900, 97661125, 195322250, 390644500]

約数ペア:

[(1, 390644500), (2, 195322250), (4, 97661125), (5, 78128900), (10, 39064450), (20, 19532225), (25, 15625780), (29, 13470500), (50, 7812890), (58, 6735250), (100, 3906445), (116, 3367625), (125, 3125156), (145, 2694100), (250, 1562578), (290, 1347050), (500, 781289), (580, 673525), (725, 538820), (841, 464500), (929, 420500), (1450, 269410), (1682, 232250), (1858, 210250), (2900, 134705), (3364, 116125), (3625, 107764), (3716, 105125), (4205, 92900), (4645, 84100), (7250, 53882), (8410, 46450), (9290, 42050), (14500, 26941), (16820, 23225), (18580, 21025)]