18564040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1414

約数の個数: 64

約数和(自身を含む): 47070720

約数和(自身を除く): 28506680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1361, 1364, 1705, 2722, 2728, 3410, 5444, 6805, 6820, 10888, 13610, 13640, 14971, 27220, 29942, 42191, 54440, 59884, 74855, 84382, 119768, 149710, 168764, 210955, 299420, 337528, 421910, 464101, 598840, 843820, 928202, 1687640, 1856404, 2320505, 3712808, 4641010, 9282020, 18564040]

約数ペア:

[(1, 18564040), (2, 9282020), (4, 4641010), (5, 3712808), (8, 2320505), (10, 1856404), (11, 1687640), (20, 928202), (22, 843820), (31, 598840), (40, 464101), (44, 421910), (55, 337528), (62, 299420), (88, 210955), (110, 168764), (124, 149710), (155, 119768), (220, 84382), (248, 74855), (310, 59884), (341, 54440), (440, 42191), (620, 29942), (682, 27220), (1240, 14971), (1361, 13640), (1364, 13610), (1705, 10888), (2722, 6820), (2728, 6805), (3410, 5444)]