20378203182

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{77761}}^1$

素因数の和:78006

約数の個数: 64

約数和(自身を含む): 47478366720

約数和(自身を除く): 27100163538

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 211, 414, 422, 621, 633, 1242, 1266, 1899, 3798, 4853, 5697, 9706, 11394, 14559, 29118, 43677, 77761, 87354, 131031, 155522, 233283, 262062, 466566, 699849, 1399698, 1788503, 2099547, 3577006, 4199094, 5365509, 10731018, 16096527, 16407571, 32193054, 32815142, 48289581, 49222713, 96579162, 98445426, 147668139, 295336278, 377374133, 443004417, 754748266, 886008834, 1132122399, 2264244798, 3396367197, 6792734394, 10189101591, 20378203182]

約数ペア:

[(1, 20378203182), (2, 10189101591), (3, 6792734394), (6, 3396367197), (9, 2264244798), (18, 1132122399), (23, 886008834), (27, 754748266), (46, 443004417), (54, 377374133), (69, 295336278), (138, 147668139), (207, 98445426), (211, 96579162), (414, 49222713), (422, 48289581), (621, 32815142), (633, 32193054), (1242, 16407571), (1266, 16096527), (1899, 10731018), (3798, 5365509), (4853, 4199094), (5697, 3577006), (9706, 2099547), (11394, 1788503), (14559, 1399698), (29118, 699849), (43677, 466566), (77761, 262062), (87354, 233283), (131031, 155522)]