20005744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{577}}^1$

素因数の和:793

約数の個数: 40

約数和(自身を含む): 42573168

約数和(自身を除く): 22567424

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 197, 394, 577, 788, 1154, 1576, 2167, 2308, 3152, 4334, 4616, 6347, 8668, 9232, 12694, 17336, 25388, 34672, 50776, 101552, 113669, 227338, 454676, 909352, 1250359, 1818704, 2500718, 5001436, 10002872, 20005744]

約数ペア:

[(1, 20005744), (2, 10002872), (4, 5001436), (8, 2500718), (11, 1818704), (16, 1250359), (22, 909352), (44, 454676), (88, 227338), (176, 113669), (197, 101552), (394, 50776), (577, 34672), (788, 25388), (1154, 17336), (1576, 12694), (2167, 9232), (2308, 8668), (3152, 6347), (4334, 4616)]