84807820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^2\times {\mathrm{191}}^1$

素因数の和:498

約数の個数: 36

約数和(自身を含む): 180238464

約数和(自身を除く): 95430644

約数列:

[1, 2, 4, 5, 10, 20, 149, 191, 298, 382, 596, 745, 764, 955, 1490, 1910, 2980, 3820, 22201, 28459, 44402, 56918, 88804, 111005, 113836, 142295, 222010, 284590, 444020, 569180, 4240391, 8480782, 16961564, 21201955, 42403910, 84807820]

約数ペア:

[(1, 84807820), (2, 42403910), (4, 21201955), (5, 16961564), (10, 8480782), (20, 4240391), (149, 569180), (191, 444020), (298, 284590), (382, 222010), (596, 142295), (745, 113836), (764, 111005), (955, 88804), (1490, 56918), (1910, 44402), (2980, 28459), (3820, 22201)]