19501790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 128

約数和(自身を含む): 48660480

約数和(自身を除く): 29158690

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 31, 35, 38, 43, 55, 62, 70, 77, 86, 95, 110, 133, 154, 155, 190, 209, 215, 217, 266, 301, 310, 341, 385, 418, 430, 434, 473, 589, 602, 665, 682, 770, 817, 946, 1045, 1085, 1178, 1330, 1333, 1463, 1505, 1634, 1705, 2090, 2170, 2365, 2387, 2666, 2926, 2945, 3010, 3311, 3410, 4085, 4123, 4730, 4774, 5719, 5890, 6479, 6622, 6665, 7315, 8170, 8246, 8987, 9331, 11438, 11935, 12958, 13330, 14630, 14663, 16555, 17974, 18662, 20615, 23870, 25327, 28595, 29326, 32395, 33110, 41230, 44935, 45353, 46655, 50654, 57190, 62909, 64790, 73315, 89870, 90706, 93310, 102641, 125818, 126635, 146630, 177289, 205282, 226765, 253270, 278597, 314545, 354578, 453530, 513205, 557194, 629090, 886445, 1026410, 1392985, 1772890, 1950179, 2785970, 3900358, 9750895, 19501790]

約数ペア:

[(1, 19501790), (2, 9750895), (5, 3900358), (7, 2785970), (10, 1950179), (11, 1772890), (14, 1392985), (19, 1026410), (22, 886445), (31, 629090), (35, 557194), (38, 513205), (43, 453530), (55, 354578), (62, 314545), (70, 278597), (77, 253270), (86, 226765), (95, 205282), (110, 177289), (133, 146630), (154, 126635), (155, 125818), (190, 102641), (209, 93310), (215, 90706), (217, 89870), (266, 73315), (301, 64790), (310, 62909), (341, 57190), (385, 50654), (418, 46655), (430, 45353), (434, 44935), (473, 41230), (589, 33110), (602, 32395), (665, 29326), (682, 28595), (770, 25327), (817, 23870), (946, 20615), (1045, 18662), (1085, 17974), (1178, 16555), (1330, 14663), (1333, 14630), (1463, 13330), (1505, 12958), (1634, 11935), (1705, 11438), (2090, 9331), (2170, 8987), (2365, 8246), (2387, 8170), (2666, 7315), (2926, 6665), (2945, 6622), (3010, 6479), (3311, 5890), (3410, 5719), (4085, 4774), (4123, 4730)]