81461864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 173352960

約数和(自身を除く): 91891096

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 127, 148, 197, 254, 296, 394, 407, 508, 788, 814, 1016, 1397, 1576, 1628, 2167, 2794, 3256, 4334, 4699, 5588, 7289, 8668, 9398, 11176, 14578, 17336, 18796, 25019, 29156, 37592, 50038, 51689, 58312, 80179, 100076, 103378, 160358, 200152, 206756, 275209, 320716, 413512, 550418, 641432, 925703, 1100836, 1851406, 2201672, 3702812, 7405624, 10182733, 20365466, 40730932, 81461864]

約数ペア:

[(1, 81461864), (2, 40730932), (4, 20365466), (8, 10182733), (11, 7405624), (22, 3702812), (37, 2201672), (44, 1851406), (74, 1100836), (88, 925703), (127, 641432), (148, 550418), (197, 413512), (254, 320716), (296, 275209), (394, 206756), (407, 200152), (508, 160358), (788, 103378), (814, 100076), (1016, 80179), (1397, 58312), (1576, 51689), (1628, 50038), (2167, 37592), (2794, 29156), (3256, 25019), (4334, 18796), (4699, 17336), (5588, 14578), (7289, 11176), (8668, 9398)]