39847780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:653

約数の個数: 72

約数和(自身を含む): 98853048

約数和(自身を除く): 59005268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 557, 730, 980, 1022, 1114, 1460, 2044, 2228, 2555, 2785, 3577, 3899, 5110, 5570, 7154, 7798, 10220, 11140, 14308, 15596, 17885, 19495, 27293, 35770, 38990, 40661, 54586, 71540, 77980, 81322, 109172, 136465, 162644, 203305, 272930, 284627, 406610, 545860, 569254, 813220, 1138508, 1423135, 1992389, 2846270, 3984778, 5692540, 7969556, 9961945, 19923890, 39847780]

約数ペア:

[(1, 39847780), (2, 19923890), (4, 9961945), (5, 7969556), (7, 5692540), (10, 3984778), (14, 2846270), (20, 1992389), (28, 1423135), (35, 1138508), (49, 813220), (70, 569254), (73, 545860), (98, 406610), (140, 284627), (146, 272930), (196, 203305), (245, 162644), (292, 136465), (365, 109172), (490, 81322), (511, 77980), (557, 71540), (730, 54586), (980, 40661), (1022, 38990), (1114, 35770), (1460, 27293), (2044, 19495), (2228, 17885), (2555, 15596), (2785, 14308), (3577, 11140), (3899, 10220), (5110, 7798), (5570, 7154)]