640654320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2669393}}^1$

素因数の和:2669409

約数の個数: 40

約数和(自身を含む): 1986029136

約数和(自身を除く): 1345374816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2669393, 5338786, 8008179, 10677572, 13346965, 16016358, 21355144, 26693930, 32032716, 40040895, 42710288, 53387860, 64065432, 80081790, 106775720, 128130864, 160163580, 213551440, 320327160, 640654320]

約数ペア:

[(1, 640654320), (2, 320327160), (3, 213551440), (4, 160163580), (5, 128130864), (6, 106775720), (8, 80081790), (10, 64065432), (12, 53387860), (15, 42710288), (16, 40040895), (20, 32032716), (24, 26693930), (30, 21355144), (40, 16016358), (48, 13346965), (60, 10677572), (80, 8008179), (120, 5338786), (240, 2669393)]