8666820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 26633880

約数和(自身を除く): 17967060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 541, 801, 890, 1068, 1082, 1335, 1602, 1623, 1780, 2164, 2670, 2705, 3204, 3246, 4005, 4869, 5340, 5410, 6492, 8010, 8115, 9738, 10820, 16020, 16230, 19476, 24345, 32460, 48149, 48690, 96298, 97380, 144447, 192596, 240745, 288894, 433341, 481490, 577788, 722235, 866682, 962980, 1444470, 1733364, 2166705, 2888940, 4333410, 8666820]

約数ペア:

[(1, 8666820), (2, 4333410), (3, 2888940), (4, 2166705), (5, 1733364), (6, 1444470), (9, 962980), (10, 866682), (12, 722235), (15, 577788), (18, 481490), (20, 433341), (30, 288894), (36, 240745), (45, 192596), (60, 144447), (89, 97380), (90, 96298), (178, 48690), (180, 48149), (267, 32460), (356, 24345), (445, 19476), (534, 16230), (541, 16020), (801, 10820), (890, 9738), (1068, 8115), (1082, 8010), (1335, 6492), (1602, 5410), (1623, 5340), (1780, 4869), (2164, 4005), (2670, 3246), (2705, 3204)]