19400740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 44174592

約数和(自身を除く): 24773852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1327, 1462, 2654, 2924, 3655, 5308, 6635, 7310, 13270, 14620, 22559, 26540, 45118, 57061, 90236, 112795, 114122, 225590, 228244, 285305, 451180, 570610, 970037, 1141220, 1940074, 3880148, 4850185, 9700370, 19400740]

約数ペア:

[(1, 19400740), (2, 9700370), (4, 4850185), (5, 3880148), (10, 1940074), (17, 1141220), (20, 970037), (34, 570610), (43, 451180), (68, 285305), (85, 228244), (86, 225590), (170, 114122), (172, 112795), (215, 90236), (340, 57061), (430, 45118), (731, 26540), (860, 22559), (1327, 14620), (1462, 13270), (2654, 7310), (2924, 6635), (3655, 5308)]