31991288

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 73094400

約数和(自身を除く): 41103112

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 107, 133, 152, 214, 266, 281, 428, 532, 562, 749, 856, 1064, 1124, 1498, 1967, 2033, 2248, 2996, 3934, 4066, 5339, 5992, 7868, 8132, 10678, 14231, 15736, 16264, 21356, 28462, 30067, 37373, 42712, 56924, 60134, 74746, 113848, 120268, 149492, 210469, 240536, 298984, 420938, 571273, 841876, 1142546, 1683752, 2285092, 3998911, 4570184, 7997822, 15995644, 31991288]

約数ペア:

[(1, 31991288), (2, 15995644), (4, 7997822), (7, 4570184), (8, 3998911), (14, 2285092), (19, 1683752), (28, 1142546), (38, 841876), (56, 571273), (76, 420938), (107, 298984), (133, 240536), (152, 210469), (214, 149492), (266, 120268), (281, 113848), (428, 74746), (532, 60134), (562, 56924), (749, 42712), (856, 37373), (1064, 30067), (1124, 28462), (1498, 21356), (1967, 16264), (2033, 15736), (2248, 14231), (2996, 10678), (3934, 8132), (4066, 7868), (5339, 5992)]