64637860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{65957}}^1$

素因数の和:65980

約数の個数: 36

約数和(自身を含む): 157903452

約数和(自身を除く): 93265592

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 65957, 131914, 263828, 329785, 461699, 659570, 923398, 1319140, 1846796, 2308495, 3231893, 4616990, 6463786, 9233980, 12927572, 16159465, 32318930, 64637860]

約数ペア:

[(1, 64637860), (2, 32318930), (4, 16159465), (5, 12927572), (7, 9233980), (10, 6463786), (14, 4616990), (20, 3231893), (28, 2308495), (35, 1846796), (49, 1319140), (70, 923398), (98, 659570), (140, 461699), (196, 329785), (245, 263828), (490, 131914), (980, 65957)]