81463480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{467}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 216075600

約数和(自身を除く): 134612120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 89, 98, 140, 178, 196, 245, 280, 356, 392, 445, 467, 490, 623, 712, 890, 934, 980, 1246, 1780, 1868, 1960, 2335, 2492, 3115, 3269, 3560, 3736, 4361, 4670, 4984, 6230, 6538, 8722, 9340, 12460, 13076, 16345, 17444, 18680, 21805, 22883, 24920, 26152, 32690, 34888, 41563, 43610, 45766, 65380, 83126, 87220, 91532, 114415, 130760, 166252, 174440, 183064, 207815, 228830, 290941, 332504, 415630, 457660, 581882, 831260, 915320, 1163764, 1454705, 1662520, 2036587, 2327528, 2909410, 4073174, 5818820, 8146348, 10182935, 11637640, 16292696, 20365870, 40731740, 81463480]

約数ペア:

[(1, 81463480), (2, 40731740), (4, 20365870), (5, 16292696), (7, 11637640), (8, 10182935), (10, 8146348), (14, 5818820), (20, 4073174), (28, 2909410), (35, 2327528), (40, 2036587), (49, 1662520), (56, 1454705), (70, 1163764), (89, 915320), (98, 831260), (140, 581882), (178, 457660), (196, 415630), (245, 332504), (280, 290941), (356, 228830), (392, 207815), (445, 183064), (467, 174440), (490, 166252), (623, 130760), (712, 114415), (890, 91532), (934, 87220), (980, 83126), (1246, 65380), (1780, 45766), (1868, 43610), (1960, 41563), (2335, 34888), (2492, 32690), (3115, 26152), (3269, 24920), (3560, 22883), (3736, 21805), (4361, 18680), (4670, 17444), (4984, 16345), (6230, 13076), (6538, 12460), (8722, 9340)]