181020660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 518918400

約数和(自身を除く): 337897740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 109, 178, 218, 267, 311, 327, 356, 436, 445, 534, 545, 622, 654, 890, 933, 1068, 1090, 1244, 1308, 1335, 1555, 1635, 1780, 1866, 2180, 2670, 3110, 3270, 3732, 4665, 5340, 6220, 6540, 9330, 9701, 18660, 19402, 27679, 29103, 33899, 38804, 48505, 55358, 58206, 67798, 83037, 97010, 101697, 110716, 116412, 135596, 138395, 145515, 166074, 169495, 194020, 203394, 276790, 291030, 332148, 338990, 406788, 415185, 508485, 553580, 582060, 677980, 830370, 1016970, 1660740, 2033940, 3017011, 6034022, 9051033, 12068044, 15085055, 18102066, 30170110, 36204132, 45255165, 60340220, 90510330, 181020660]

約数ペア:

[(1, 181020660), (2, 90510330), (3, 60340220), (4, 45255165), (5, 36204132), (6, 30170110), (10, 18102066), (12, 15085055), (15, 12068044), (20, 9051033), (30, 6034022), (60, 3017011), (89, 2033940), (109, 1660740), (178, 1016970), (218, 830370), (267, 677980), (311, 582060), (327, 553580), (356, 508485), (436, 415185), (445, 406788), (534, 338990), (545, 332148), (622, 291030), (654, 276790), (890, 203394), (933, 194020), (1068, 169495), (1090, 166074), (1244, 145515), (1308, 138395), (1335, 135596), (1555, 116412), (1635, 110716), (1780, 101697), (1866, 97010), (2180, 83037), (2670, 67798), (3110, 58206), (3270, 55358), (3732, 48505), (4665, 38804), (5340, 33899), (6220, 29103), (6540, 27679), (9330, 19402), (9701, 18660)]