209412880

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{16673}}^1$

素因数の和:16843

約数の個数: 40

約数和(自身を含む): 490015512

約数和(自身を除く): 280602632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 16673, 33346, 66692, 83365, 133384, 166730, 266768, 333460, 666920, 1333840, 2617661, 5235322, 10470644, 13088305, 20941288, 26176610, 41882576, 52353220, 104706440, 209412880]

約数ペア:

[(1, 209412880), (2, 104706440), (4, 52353220), (5, 41882576), (8, 26176610), (10, 20941288), (16, 13088305), (20, 10470644), (40, 5235322), (80, 2617661), (157, 1333840), (314, 666920), (628, 333460), (785, 266768), (1256, 166730), (1570, 133384), (2512, 83365), (3140, 66692), (6280, 33346), (12560, 16673)]