16861960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 40687920

約数和(自身を除く): 23825960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 170, 181, 274, 340, 362, 548, 680, 685, 724, 905, 1096, 1370, 1448, 1810, 2329, 2740, 3077, 3620, 4658, 5480, 6154, 7240, 9316, 11645, 12308, 15385, 18632, 23290, 24616, 24797, 30770, 46580, 49594, 61540, 93160, 99188, 123080, 123985, 198376, 247970, 421549, 495940, 843098, 991880, 1686196, 2107745, 3372392, 4215490, 8430980, 16861960]

約数ペア:

[(1, 16861960), (2, 8430980), (4, 4215490), (5, 3372392), (8, 2107745), (10, 1686196), (17, 991880), (20, 843098), (34, 495940), (40, 421549), (68, 247970), (85, 198376), (136, 123985), (137, 123080), (170, 99188), (181, 93160), (274, 61540), (340, 49594), (362, 46580), (548, 30770), (680, 24797), (685, 24616), (724, 23290), (905, 18632), (1096, 15385), (1370, 12308), (1448, 11645), (1810, 9316), (2329, 7240), (2740, 6154), (3077, 5480), (3620, 4658)]