20080385720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29529979}}^1$

素因数の和:29530007

約数の個数: 32

約数和(自身を含む): 47838567600

約数和(自身を除く): 27758181880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29529979, 59059958, 118119916, 147649895, 236239832, 295299790, 502009643, 590599580, 1004019286, 1181199160, 2008038572, 2510048215, 4016077144, 5020096430, 10040192860, 20080385720]

約数ペア:

[(1, 20080385720), (2, 10040192860), (4, 5020096430), (5, 4016077144), (8, 2510048215), (10, 2008038572), (17, 1181199160), (20, 1004019286), (34, 590599580), (40, 502009643), (68, 295299790), (85, 236239832), (136, 147649895), (170, 118119916), (340, 59059958), (680, 29529979)]