19225980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 63370944

約数和(自身を除く): 44144964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 61, 68, 85, 90, 102, 103, 122, 153, 170, 180, 183, 204, 206, 244, 255, 305, 306, 309, 340, 366, 412, 510, 515, 549, 610, 612, 618, 732, 765, 915, 927, 1020, 1030, 1037, 1098, 1220, 1236, 1530, 1545, 1751, 1830, 1854, 2060, 2074, 2196, 2745, 3060, 3090, 3111, 3502, 3660, 3708, 4148, 4635, 5185, 5253, 5490, 6180, 6222, 6283, 7004, 8755, 9270, 9333, 10370, 10506, 10980, 12444, 12566, 15555, 15759, 17510, 18540, 18666, 18849, 20740, 21012, 25132, 26265, 31110, 31415, 31518, 35020, 37332, 37698, 46665, 52530, 56547, 62220, 62830, 63036, 75396, 78795, 93330, 94245, 105060, 106811, 113094, 125660, 157590, 186660, 188490, 213622, 226188, 282735, 315180, 320433, 376980, 427244, 534055, 565470, 640866, 961299, 1068110, 1130940, 1281732, 1602165, 1922598, 2136220, 3204330, 3845196, 4806495, 6408660, 9612990, 19225980]

約数ペア:

[(1, 19225980), (2, 9612990), (3, 6408660), (4, 4806495), (5, 3845196), (6, 3204330), (9, 2136220), (10, 1922598), (12, 1602165), (15, 1281732), (17, 1130940), (18, 1068110), (20, 961299), (30, 640866), (34, 565470), (36, 534055), (45, 427244), (51, 376980), (60, 320433), (61, 315180), (68, 282735), (85, 226188), (90, 213622), (102, 188490), (103, 186660), (122, 157590), (153, 125660), (170, 113094), (180, 106811), (183, 105060), (204, 94245), (206, 93330), (244, 78795), (255, 75396), (305, 63036), (306, 62830), (309, 62220), (340, 56547), (366, 52530), (412, 46665), (510, 37698), (515, 37332), (549, 35020), (610, 31518), (612, 31415), (618, 31110), (732, 26265), (765, 25132), (915, 21012), (927, 20740), (1020, 18849), (1030, 18666), (1037, 18540), (1098, 17510), (1220, 15759), (1236, 15555), (1530, 12566), (1545, 12444), (1751, 10980), (1830, 10506), (1854, 10370), (2060, 9333), (2074, 9270), (2196, 8755), (2745, 7004), (3060, 6283), (3090, 6222), (3111, 6180), (3502, 5490), (3660, 5253), (3708, 5185), (4148, 4635)]