72172000

素因数分解:

$2^5\times 5^3\times {\mathrm{18043}}^1$

素因数の和:18068

約数の個数: 48

約数和(自身を含む): 177336432

約数和(自身を除く): 105164432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 18043, 36086, 72172, 90215, 144344, 180430, 288688, 360860, 451075, 577376, 721720, 902150, 1443440, 1804300, 2255375, 2886880, 3608600, 4510750, 7217200, 9021500, 14434400, 18043000, 36086000, 72172000]

約数ペア:

[(1, 72172000), (2, 36086000), (4, 18043000), (5, 14434400), (8, 9021500), (10, 7217200), (16, 4510750), (20, 3608600), (25, 2886880), (32, 2255375), (40, 1804300), (50, 1443440), (80, 902150), (100, 721720), (125, 577376), (160, 451075), (200, 360860), (250, 288688), (400, 180430), (500, 144344), (800, 90215), (1000, 72172), (2000, 36086), (4000, 18043)]