80368520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{118189}}^1$

素因数の和:118217

約数の個数: 32

約数和(自身を含む): 191467800

約数和(自身を除く): 111099280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 118189, 236378, 472756, 590945, 945512, 1181890, 2009213, 2363780, 4018426, 4727560, 8036852, 10046065, 16073704, 20092130, 40184260, 80368520]

約数ペア:

[(1, 80368520), (2, 40184260), (4, 20092130), (5, 16073704), (8, 10046065), (10, 8036852), (17, 4727560), (20, 4018426), (34, 2363780), (40, 2009213), (68, 1181890), (85, 945512), (136, 590945), (170, 472756), (340, 236378), (680, 118189)]