213089080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{541}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 493653600

約数和(自身を除く): 280564520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 229, 344, 430, 458, 541, 860, 916, 1082, 1145, 1720, 1832, 2164, 2290, 2705, 4328, 4580, 5410, 9160, 9847, 10820, 19694, 21640, 23263, 39388, 46526, 49235, 78776, 93052, 98470, 116315, 123889, 186104, 196940, 232630, 247778, 393880, 465260, 495556, 619445, 930520, 991112, 1238890, 2477780, 4955560, 5327227, 10654454, 21308908, 26636135, 42617816, 53272270, 106544540, 213089080]

約数ペア:

[(1, 213089080), (2, 106544540), (4, 53272270), (5, 42617816), (8, 26636135), (10, 21308908), (20, 10654454), (40, 5327227), (43, 4955560), (86, 2477780), (172, 1238890), (215, 991112), (229, 930520), (344, 619445), (430, 495556), (458, 465260), (541, 393880), (860, 247778), (916, 232630), (1082, 196940), (1145, 186104), (1720, 123889), (1832, 116315), (2164, 98470), (2290, 93052), (2705, 78776), (4328, 49235), (4580, 46526), (5410, 39388), (9160, 23263), (9847, 21640), (10820, 19694)]