81991476

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19139}}^1$

素因数の和:19173

約数の個数: 72

約数和(自身を含む): 250810560

約数和(自身を除く): 168819084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 19139, 38278, 57417, 76556, 114834, 133973, 172251, 229668, 267946, 325363, 344502, 401919, 535892, 650726, 689004, 803838, 976089, 1205757, 1301452, 1607676, 1952178, 2277541, 2411514, 2928267, 3904356, 4555082, 4823028, 5856534, 6832623, 9110164, 11713068, 13665246, 20497869, 27330492, 40995738, 81991476]

約数ペア:

[(1, 81991476), (2, 40995738), (3, 27330492), (4, 20497869), (6, 13665246), (7, 11713068), (9, 9110164), (12, 6832623), (14, 5856534), (17, 4823028), (18, 4555082), (21, 3904356), (28, 2928267), (34, 2411514), (36, 2277541), (42, 1952178), (51, 1607676), (63, 1301452), (68, 1205757), (84, 976089), (102, 803838), (119, 689004), (126, 650726), (153, 535892), (204, 401919), (238, 344502), (252, 325363), (306, 267946), (357, 229668), (476, 172251), (612, 133973), (714, 114834), (1071, 76556), (1428, 57417), (2142, 38278), (4284, 19139)]