83281840

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1609}}^1$

素因数の和:2269

約数の個数: 40

約数和(自身を含む): 194050080

約数和(自身を除く): 110768240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 1609, 2588, 3218, 3235, 5176, 6436, 6470, 8045, 10352, 12872, 12940, 16090, 25744, 25880, 32180, 51760, 64360, 128720, 1041023, 2082046, 4164092, 5205115, 8328184, 10410230, 16656368, 20820460, 41640920, 83281840]

約数ペア:

[(1, 83281840), (2, 41640920), (4, 20820460), (5, 16656368), (8, 10410230), (10, 8328184), (16, 5205115), (20, 4164092), (40, 2082046), (80, 1041023), (647, 128720), (1294, 64360), (1609, 51760), (2588, 32180), (3218, 25880), (3235, 25744), (5176, 16090), (6436, 12940), (6470, 12872), (8045, 10352)]