20768264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 45895680

約数和(自身を除く): 25127416

約数列:

[1, 2, 4, 8, 11, 22, 23, 31, 44, 46, 62, 88, 92, 124, 184, 248, 253, 331, 341, 506, 662, 682, 713, 1012, 1324, 1364, 1426, 2024, 2648, 2728, 2852, 3641, 5704, 7282, 7613, 7843, 10261, 14564, 15226, 15686, 20522, 29128, 30452, 31372, 41044, 60904, 62744, 82088, 83743, 112871, 167486, 225742, 236003, 334972, 451484, 472006, 669944, 902968, 944012, 1888024, 2596033, 5192066, 10384132, 20768264]

約数ペア:

[(1, 20768264), (2, 10384132), (4, 5192066), (8, 2596033), (11, 1888024), (22, 944012), (23, 902968), (31, 669944), (44, 472006), (46, 451484), (62, 334972), (88, 236003), (92, 225742), (124, 167486), (184, 112871), (248, 83743), (253, 82088), (331, 62744), (341, 60904), (506, 41044), (662, 31372), (682, 30452), (713, 29128), (1012, 20522), (1324, 15686), (1364, 15226), (1426, 14564), (2024, 10261), (2648, 7843), (2728, 7613), (2852, 7282), (3641, 5704)]