20629390

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{349}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 39009600

約数和(自身を除く): 18380210

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 257, 349, 514, 698, 1285, 1745, 2570, 3490, 5911, 8027, 11822, 16054, 29555, 40135, 59110, 80270, 89693, 179386, 448465, 896930, 2062939, 4125878, 10314695, 20629390]

約数ペア:

[(1, 20629390), (2, 10314695), (5, 4125878), (10, 2062939), (23, 896930), (46, 448465), (115, 179386), (230, 89693), (257, 80270), (349, 59110), (514, 40135), (698, 29555), (1285, 16054), (1745, 11822), (2570, 8027), (3490, 5911)]