18388580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 48168960

約数和(自身を除く): 29780380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 223, 266, 310, 380, 434, 446, 532, 589, 620, 665, 868, 892, 1085, 1115, 1178, 1330, 1561, 2170, 2230, 2356, 2660, 2945, 3122, 4123, 4237, 4340, 4460, 5890, 6244, 6913, 7805, 8246, 8474, 11780, 13826, 15610, 16492, 16948, 20615, 21185, 27652, 29659, 31220, 34565, 41230, 42370, 48391, 59318, 69130, 82460, 84740, 96782, 118636, 131347, 138260, 148295, 193564, 241955, 262694, 296590, 483910, 525388, 593180, 656735, 919429, 967820, 1313470, 1838858, 2626940, 3677716, 4597145, 9194290, 18388580]

約数ペア:

[(1, 18388580), (2, 9194290), (4, 4597145), (5, 3677716), (7, 2626940), (10, 1838858), (14, 1313470), (19, 967820), (20, 919429), (28, 656735), (31, 593180), (35, 525388), (38, 483910), (62, 296590), (70, 262694), (76, 241955), (95, 193564), (124, 148295), (133, 138260), (140, 131347), (155, 118636), (190, 96782), (217, 84740), (223, 82460), (266, 69130), (310, 59318), (380, 48391), (434, 42370), (446, 41230), (532, 34565), (589, 31220), (620, 29659), (665, 27652), (868, 21185), (892, 20615), (1085, 16948), (1115, 16492), (1178, 15610), (1330, 13826), (1561, 11780), (2170, 8474), (2230, 8246), (2356, 7805), (2660, 6913), (2945, 6244), (3122, 5890), (4123, 4460), (4237, 4340)]