129311200

素因数分解:

$2^5\times 5^2\times {\mathrm{161639}}^1$

素因数の和:161659

約数の個数: 36

約数和(自身を含む): 315682920

約数和(自身を除く): 186371720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 161639, 323278, 646556, 808195, 1293112, 1616390, 2586224, 3232780, 4040975, 5172448, 6465560, 8081950, 12931120, 16163900, 25862240, 32327800, 64655600, 129311200]

約数ペア:

[(1, 129311200), (2, 64655600), (4, 32327800), (5, 25862240), (8, 16163900), (10, 12931120), (16, 8081950), (20, 6465560), (25, 5172448), (32, 4040975), (40, 3232780), (50, 2586224), (80, 1616390), (100, 1293112), (160, 808195), (200, 646556), (400, 323278), (800, 161639)]