20653020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:835

約数の個数: 72

約数和(自身を含む): 63095760

約数和(自身を除く): 42442740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 641, 716, 895, 1074, 1282, 1611, 1790, 1923, 2148, 2564, 2685, 3205, 3222, 3580, 3846, 5370, 5769, 6410, 6444, 7692, 8055, 9615, 10740, 11538, 12820, 16110, 19230, 23076, 28845, 32220, 38460, 57690, 114739, 115380, 229478, 344217, 458956, 573695, 688434, 1032651, 1147390, 1376868, 1721085, 2065302, 2294780, 3442170, 4130604, 5163255, 6884340, 10326510, 20653020]

約数ペア:

[(1, 20653020), (2, 10326510), (3, 6884340), (4, 5163255), (5, 4130604), (6, 3442170), (9, 2294780), (10, 2065302), (12, 1721085), (15, 1376868), (18, 1147390), (20, 1032651), (30, 688434), (36, 573695), (45, 458956), (60, 344217), (90, 229478), (179, 115380), (180, 114739), (358, 57690), (537, 38460), (641, 32220), (716, 28845), (895, 23076), (1074, 19230), (1282, 16110), (1611, 12820), (1790, 11538), (1923, 10740), (2148, 9615), (2564, 8055), (2685, 7692), (3205, 6444), (3222, 6410), (3580, 5769), (3846, 5370)]