19308940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 53434080

約数和(自身を除く): 34125140

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 49, 61, 68, 70, 76, 85, 95, 98, 119, 122, 133, 140, 170, 190, 196, 238, 244, 245, 266, 305, 323, 340, 380, 427, 476, 490, 532, 595, 610, 646, 665, 833, 854, 931, 980, 1037, 1159, 1190, 1220, 1292, 1330, 1615, 1666, 1708, 1862, 2074, 2135, 2261, 2318, 2380, 2660, 2989, 3230, 3332, 3724, 4148, 4165, 4270, 4522, 4636, 4655, 5185, 5795, 5978, 6460, 7259, 8113, 8330, 8540, 9044, 9310, 10370, 11305, 11590, 11956, 14518, 14945, 15827, 16226, 16660, 18620, 19703, 20740, 22610, 23180, 29036, 29890, 31654, 32452, 36295, 39406, 40565, 45220, 50813, 56791, 59780, 63308, 72590, 78812, 79135, 81130, 98515, 101626, 113582, 137921, 145180, 158270, 162260, 197030, 203252, 227164, 254065, 275842, 283955, 316540, 394060, 508130, 551684, 567910, 689605, 965447, 1016260, 1135820, 1379210, 1930894, 2758420, 3861788, 4827235, 9654470, 19308940]

約数ペア:

[(1, 19308940), (2, 9654470), (4, 4827235), (5, 3861788), (7, 2758420), (10, 1930894), (14, 1379210), (17, 1135820), (19, 1016260), (20, 965447), (28, 689605), (34, 567910), (35, 551684), (38, 508130), (49, 394060), (61, 316540), (68, 283955), (70, 275842), (76, 254065), (85, 227164), (95, 203252), (98, 197030), (119, 162260), (122, 158270), (133, 145180), (140, 137921), (170, 113582), (190, 101626), (196, 98515), (238, 81130), (244, 79135), (245, 78812), (266, 72590), (305, 63308), (323, 59780), (340, 56791), (380, 50813), (427, 45220), (476, 40565), (490, 39406), (532, 36295), (595, 32452), (610, 31654), (646, 29890), (665, 29036), (833, 23180), (854, 22610), (931, 20740), (980, 19703), (1037, 18620), (1159, 16660), (1190, 16226), (1220, 15827), (1292, 14945), (1330, 14518), (1615, 11956), (1666, 11590), (1708, 11305), (1862, 10370), (2074, 9310), (2135, 9044), (2261, 8540), (2318, 8330), (2380, 8113), (2660, 7259), (2989, 6460), (3230, 5978), (3332, 5795), (3724, 5185), (4148, 4655), (4165, 4636), (4270, 4522)]