720800

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:90

約数の個数: 72

約数和(自身を含む): 1898316

約数和(自身を除く): 1177516

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 53, 68, 80, 85, 100, 106, 136, 160, 170, 200, 212, 265, 272, 340, 400, 424, 425, 530, 544, 680, 800, 848, 850, 901, 1060, 1325, 1360, 1696, 1700, 1802, 2120, 2650, 2720, 3400, 3604, 4240, 4505, 5300, 6800, 7208, 8480, 9010, 10600, 13600, 14416, 18020, 21200, 22525, 28832, 36040, 42400, 45050, 72080, 90100, 144160, 180200, 360400, 720800]

約数ペア:

[(1, 720800), (2, 360400), (4, 180200), (5, 144160), (8, 90100), (10, 72080), (16, 45050), (17, 42400), (20, 36040), (25, 28832), (32, 22525), (34, 21200), (40, 18020), (50, 14416), (53, 13600), (68, 10600), (80, 9010), (85, 8480), (100, 7208), (106, 6800), (136, 5300), (160, 4505), (170, 4240), (200, 3604), (212, 3400), (265, 2720), (272, 2650), (340, 2120), (400, 1802), (424, 1700), (425, 1696), (530, 1360), (544, 1325), (680, 1060), (800, 901), (848, 850)]