81771840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{28393}}^1$

素因数の和:28416

約数の個数: 84

約数和(自身を含む): 281270964

約数和(自身を除く): 199499124

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 28393, 56786, 85179, 113572, 141965, 170358, 227144, 255537, 283930, 340716, 425895, 454288, 511074, 567860, 681432, 851790, 908576, 1022148, 1135720, 1277685, 1362864, 1703580, 1817152, 2044296, 2271440, 2555370, 2725728, 3407160, 4088592, 4542880, 5110740, 5451456, 6814320, 8177184, 9085760, 10221480, 13628640, 16354368, 20442960, 27257280, 40885920, 81771840]

約数ペア:

[(1, 81771840), (2, 40885920), (3, 27257280), (4, 20442960), (5, 16354368), (6, 13628640), (8, 10221480), (9, 9085760), (10, 8177184), (12, 6814320), (15, 5451456), (16, 5110740), (18, 4542880), (20, 4088592), (24, 3407160), (30, 2725728), (32, 2555370), (36, 2271440), (40, 2044296), (45, 1817152), (48, 1703580), (60, 1362864), (64, 1277685), (72, 1135720), (80, 1022148), (90, 908576), (96, 851790), (120, 681432), (144, 567860), (160, 511074), (180, 454288), (192, 425895), (240, 340716), (288, 283930), (320, 255537), (360, 227144), (480, 170358), (576, 141965), (720, 113572), (960, 85179), (1440, 56786), (2880, 28393)]