19956520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{6011}}^1$

素因数の和:6105

約数の個数: 32

約数和(自身を含む): 45450720

約数和(自身を除く): 25494200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 6011, 12022, 24044, 30055, 48088, 60110, 120220, 240440, 498913, 997826, 1995652, 2494565, 3991304, 4989130, 9978260, 19956520]

約数ペア:

[(1, 19956520), (2, 9978260), (4, 4989130), (5, 3991304), (8, 2494565), (10, 1995652), (20, 997826), (40, 498913), (83, 240440), (166, 120220), (332, 60110), (415, 48088), (664, 30055), (830, 24044), (1660, 12022), (3320, 6011)]