20126920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 49896000

約数和(自身を除く): 29769080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 149, 220, 298, 307, 440, 596, 614, 745, 1192, 1228, 1490, 1535, 1639, 2456, 2980, 3070, 3278, 3377, 5960, 6140, 6556, 6754, 8195, 12280, 13112, 13508, 16390, 16885, 27016, 32780, 33770, 45743, 65560, 67540, 91486, 135080, 182972, 228715, 365944, 457430, 503173, 914860, 1006346, 1829720, 2012692, 2515865, 4025384, 5031730, 10063460, 20126920]

約数ペア:

[(1, 20126920), (2, 10063460), (4, 5031730), (5, 4025384), (8, 2515865), (10, 2012692), (11, 1829720), (20, 1006346), (22, 914860), (40, 503173), (44, 457430), (55, 365944), (88, 228715), (110, 182972), (149, 135080), (220, 91486), (298, 67540), (307, 65560), (440, 45743), (596, 33770), (614, 32780), (745, 27016), (1192, 16885), (1228, 16390), (1490, 13508), (1535, 13112), (1639, 12280), (2456, 8195), (2980, 6754), (3070, 6556), (3278, 6140), (3377, 5960)]