1288947200

素因数分解:

$2^9\times 5^2\times {\mathrm{100699}}^1$

素因数の和:100727

約数の個数: 60

約数和(自身を含む): 3193499100

約数和(自身を除く): 1904551900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1600, 2560, 3200, 6400, 12800, 100699, 201398, 402796, 503495, 805592, 1006990, 1611184, 2013980, 2517475, 3222368, 4027960, 5034950, 6444736, 8055920, 10069900, 12889472, 16111840, 20139800, 25778944, 32223680, 40279600, 51557888, 64447360, 80559200, 128894720, 161118400, 257789440, 322236800, 644473600, 1288947200]

約数ペア:

[(1, 1288947200), (2, 644473600), (4, 322236800), (5, 257789440), (8, 161118400), (10, 128894720), (16, 80559200), (20, 64447360), (25, 51557888), (32, 40279600), (40, 32223680), (50, 25778944), (64, 20139800), (80, 16111840), (100, 12889472), (128, 10069900), (160, 8055920), (200, 6444736), (256, 5034950), (320, 4027960), (400, 3222368), (512, 2517475), (640, 2013980), (800, 1611184), (1280, 1006990), (1600, 805592), (2560, 503495), (3200, 402796), (6400, 201398), (12800, 100699)]