68640280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{74609}}^1$

素因数の和:74643

約数の個数: 32

約数和(自身を含む): 161157600

約数和(自身を除く): 92517320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 74609, 149218, 298436, 373045, 596872, 746090, 1492180, 1716007, 2984360, 3432014, 6864028, 8580035, 13728056, 17160070, 34320140, 68640280]

約数ペア:

[(1, 68640280), (2, 34320140), (4, 17160070), (5, 13728056), (8, 8580035), (10, 6864028), (20, 3432014), (23, 2984360), (40, 1716007), (46, 1492180), (92, 746090), (115, 596872), (184, 373045), (230, 298436), (460, 149218), (920, 74609)]