209138040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{580939}}^1$

素因数の和:580956

約数の個数: 48

約数和(自身を含む): 679699800

約数和(自身を除く): 470561760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 580939, 1161878, 1742817, 2323756, 2904695, 3485634, 4647512, 5228451, 5809390, 6971268, 8714085, 10456902, 11618780, 13942536, 17428170, 20913804, 23237560, 26142255, 34856340, 41827608, 52284510, 69712680, 104569020, 209138040]

約数ペア:

[(1, 209138040), (2, 104569020), (3, 69712680), (4, 52284510), (5, 41827608), (6, 34856340), (8, 26142255), (9, 23237560), (10, 20913804), (12, 17428170), (15, 13942536), (18, 11618780), (20, 10456902), (24, 8714085), (30, 6971268), (36, 5809390), (40, 5228451), (45, 4647512), (60, 3485634), (72, 2904695), (90, 2323756), (120, 1742817), (180, 1161878), (360, 580939)]