165895880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{379}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 387417600

約数和(自身を除く): 221521720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 353, 379, 620, 706, 758, 1240, 1412, 1516, 1765, 1895, 2824, 3032, 3530, 3790, 7060, 7580, 10943, 11749, 14120, 15160, 21886, 23498, 43772, 46996, 54715, 58745, 87544, 93992, 109430, 117490, 133787, 218860, 234980, 267574, 437720, 469960, 535148, 668935, 1070296, 1337870, 2675740, 4147397, 5351480, 8294794, 16589588, 20736985, 33179176, 41473970, 82947940, 165895880]

約数ペア:

[(1, 165895880), (2, 82947940), (4, 41473970), (5, 33179176), (8, 20736985), (10, 16589588), (20, 8294794), (31, 5351480), (40, 4147397), (62, 2675740), (124, 1337870), (155, 1070296), (248, 668935), (310, 535148), (353, 469960), (379, 437720), (620, 267574), (706, 234980), (758, 218860), (1240, 133787), (1412, 117490), (1516, 109430), (1765, 93992), (1895, 87544), (2824, 58745), (3032, 54715), (3530, 46996), (3790, 43772), (7060, 23498), (7580, 21886), (10943, 15160), (11749, 14120)]