220781835

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{523}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 407462400

約数和(自身を除く): 186680565

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 59, 135, 159, 177, 265, 295, 477, 523, 531, 795, 885, 1431, 1569, 1593, 2385, 2615, 2655, 3127, 4707, 7155, 7845, 7965, 9381, 14121, 15635, 23535, 27719, 28143, 30857, 46905, 70605, 83157, 84429, 92571, 138595, 140715, 154285, 249471, 277713, 415785, 422145, 462855, 748413, 833139, 1247355, 1388565, 1635421, 3742065, 4165695, 4906263, 8177105, 14718789, 24531315, 44156367, 73593945, 220781835]

約数ペア:

[(1, 220781835), (3, 73593945), (5, 44156367), (9, 24531315), (15, 14718789), (27, 8177105), (45, 4906263), (53, 4165695), (59, 3742065), (135, 1635421), (159, 1388565), (177, 1247355), (265, 833139), (295, 748413), (477, 462855), (523, 422145), (531, 415785), (795, 277713), (885, 249471), (1431, 154285), (1569, 140715), (1593, 138595), (2385, 92571), (2615, 84429), (2655, 83157), (3127, 70605), (4707, 46905), (7155, 30857), (7845, 28143), (7965, 27719), (9381, 23535), (14121, 15635)]