31509738

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^2$

素因数の和:216

約数の個数: 72

約数和(自身を含む): 78732108

約数和(自身を除く): 47222370

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 89, 102, 117, 153, 178, 221, 234, 267, 306, 442, 534, 663, 801, 1157, 1326, 1513, 1602, 1989, 2314, 3026, 3471, 3978, 4539, 6942, 7921, 9078, 10413, 13617, 15842, 19669, 20826, 23763, 27234, 39338, 47526, 59007, 71289, 102973, 118014, 134657, 142578, 177021, 205946, 269314, 308919, 354042, 403971, 617838, 807942, 926757, 1211913, 1750541, 1853514, 2423826, 3501082, 5251623, 10503246, 15754869, 31509738]

約数ペア:

[(1, 31509738), (2, 15754869), (3, 10503246), (6, 5251623), (9, 3501082), (13, 2423826), (17, 1853514), (18, 1750541), (26, 1211913), (34, 926757), (39, 807942), (51, 617838), (78, 403971), (89, 354042), (102, 308919), (117, 269314), (153, 205946), (178, 177021), (221, 142578), (234, 134657), (267, 118014), (306, 102973), (442, 71289), (534, 59007), (663, 47526), (801, 39338), (1157, 27234), (1326, 23763), (1513, 20826), (1602, 19669), (1989, 15842), (2314, 13617), (3026, 10413), (3471, 9078), (3978, 7921), (4539, 6942)]