1263894400

素因数分解:

$2^7\times 5^2\times {\mathrm{394967}}^1$

素因数の和:394991

約数の個数: 48

約数和(自身を含む): 3122222040

約数和(自身を除く): 1858327640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 394967, 789934, 1579868, 1974835, 3159736, 3949670, 6319472, 7899340, 9874175, 12638944, 15798680, 19748350, 25277888, 31597360, 39496700, 50555776, 63194720, 78993400, 126389440, 157986800, 252778880, 315973600, 631947200, 1263894400]

約数ペア:

[(1, 1263894400), (2, 631947200), (4, 315973600), (5, 252778880), (8, 157986800), (10, 126389440), (16, 78993400), (20, 63194720), (25, 50555776), (32, 39496700), (40, 31597360), (50, 25277888), (64, 19748350), (80, 15798680), (100, 12638944), (128, 9874175), (160, 7899340), (200, 6319472), (320, 3949670), (400, 3159736), (640, 1974835), (800, 1579868), (1600, 789934), (3200, 394967)]