81176220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15551}}^1$

素因数の和:15595

約数の個数: 72

約数和(自身を含む): 254741760

約数和(自身を除く): 173565540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 15551, 31102, 46653, 62204, 77755, 93306, 139959, 155510, 186612, 233265, 279918, 311020, 450979, 466530, 559836, 699795, 901958, 933060, 1352937, 1399590, 1803916, 2254895, 2705874, 2799180, 4058811, 4509790, 5411748, 6764685, 8117622, 9019580, 13529370, 16235244, 20294055, 27058740, 40588110, 81176220]

約数ペア:

[(1, 81176220), (2, 40588110), (3, 27058740), (4, 20294055), (5, 16235244), (6, 13529370), (9, 9019580), (10, 8117622), (12, 6764685), (15, 5411748), (18, 4509790), (20, 4058811), (29, 2799180), (30, 2705874), (36, 2254895), (45, 1803916), (58, 1399590), (60, 1352937), (87, 933060), (90, 901958), (116, 699795), (145, 559836), (174, 466530), (180, 450979), (261, 311020), (290, 279918), (348, 233265), (435, 186612), (522, 155510), (580, 139959), (870, 93306), (1044, 77755), (1305, 62204), (1740, 46653), (2610, 31102), (5220, 15551)]