81871560

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{8423}}^1$

素因数の和:8449

約数の個数: 96

約数和(自身を含む): 275970240

約数和(自身を除く): 194098680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 8423, 9720, 16846, 25269, 33692, 42115, 50538, 67384, 75807, 84230, 101076, 126345, 151614, 168460, 202152, 227421, 252690, 303228, 336920, 379035, 454842, 505380, 606456, 682263, 758070, 909684, 1010760, 1137105, 1364526, 1516140, 1819368, 2046789, 2274210, 2729052, 3032280, 3411315, 4093578, 4548420, 5458104, 6822630, 8187156, 9096840, 10233945, 13645260, 16374312, 20467890, 27290520, 40935780, 81871560]

約数ペア:

[(1, 81871560), (2, 40935780), (3, 27290520), (4, 20467890), (5, 16374312), (6, 13645260), (8, 10233945), (9, 9096840), (10, 8187156), (12, 6822630), (15, 5458104), (18, 4548420), (20, 4093578), (24, 3411315), (27, 3032280), (30, 2729052), (36, 2274210), (40, 2046789), (45, 1819368), (54, 1516140), (60, 1364526), (72, 1137105), (81, 1010760), (90, 909684), (108, 758070), (120, 682263), (135, 606456), (162, 505380), (180, 454842), (216, 379035), (243, 336920), (270, 303228), (324, 252690), (360, 227421), (405, 202152), (486, 168460), (540, 151614), (648, 126345), (810, 101076), (972, 84230), (1080, 75807), (1215, 67384), (1620, 50538), (1944, 42115), (2430, 33692), (3240, 25269), (4860, 16846), (8423, 9720)]