81446640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30851}}^1$

素因数の和:30878

約数の個数: 80

約数和(自身を含む): 275446656

約数和(自身を除く): 194000016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30851, 61702, 92553, 123404, 154255, 185106, 246808, 308510, 339361, 370212, 462765, 493616, 617020, 678722, 740424, 925530, 1018083, 1234040, 1357444, 1480848, 1696805, 1851060, 2036166, 2468080, 2714888, 3393610, 3702120, 4072332, 5090415, 5429776, 6787220, 7404240, 8144664, 10180830, 13574440, 16289328, 20361660, 27148880, 40723320, 81446640]

約数ペア:

[(1, 81446640), (2, 40723320), (3, 27148880), (4, 20361660), (5, 16289328), (6, 13574440), (8, 10180830), (10, 8144664), (11, 7404240), (12, 6787220), (15, 5429776), (16, 5090415), (20, 4072332), (22, 3702120), (24, 3393610), (30, 2714888), (33, 2468080), (40, 2036166), (44, 1851060), (48, 1696805), (55, 1480848), (60, 1357444), (66, 1234040), (80, 1018083), (88, 925530), (110, 740424), (120, 678722), (132, 617020), (165, 493616), (176, 462765), (220, 370212), (240, 339361), (264, 308510), (330, 246808), (440, 185106), (528, 154255), (660, 123404), (880, 92553), (1320, 61702), (2640, 30851)]