20280482565

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{1187}}^1$

素因数の和:1443

約数の個数: 128

約数和(自身を含む): 39852933120

約数和(自身を除く): 19572450555

約数列:

[1, 3, 5, 7, 15, 21, 29, 31, 35, 87, 93, 105, 145, 155, 181, 203, 217, 435, 465, 543, 609, 651, 899, 905, 1015, 1085, 1187, 1267, 2697, 2715, 3045, 3255, 3561, 3801, 4495, 5249, 5611, 5935, 6293, 6335, 8309, 13485, 15747, 16833, 17805, 18879, 19005, 24927, 26245, 28055, 31465, 34423, 36743, 36797, 39277, 41545, 78735, 84165, 94395, 103269, 110229, 110391, 117831, 124635, 162719, 172115, 183715, 183985, 196385, 214847, 240961, 257579, 488157, 516345, 551145, 551955, 589155, 644541, 722883, 772737, 813595, 1067113, 1074235, 1139033, 1204805, 1287895, 1503929, 2440785, 3201339, 3222705, 3417099, 3614415, 3863685, 4511787, 5335565, 5695165, 6230563, 6660257, 7469791, 7519645, 16006695, 17085495, 18691689, 19980771, 22409373, 22558935, 31152815, 33301285, 37348955, 43613941, 46621799, 93458445, 99903855, 112046865, 130841823, 139865397, 193147453, 218069705, 233108995, 579442359, 654209115, 699326985, 965737265, 1352032171, 2897211795, 4056096513, 6760160855, 20280482565]

約数ペア:

[(1, 20280482565), (3, 6760160855), (5, 4056096513), (7, 2897211795), (15, 1352032171), (21, 965737265), (29, 699326985), (31, 654209115), (35, 579442359), (87, 233108995), (93, 218069705), (105, 193147453), (145, 139865397), (155, 130841823), (181, 112046865), (203, 99903855), (217, 93458445), (435, 46621799), (465, 43613941), (543, 37348955), (609, 33301285), (651, 31152815), (899, 22558935), (905, 22409373), (1015, 19980771), (1085, 18691689), (1187, 17085495), (1267, 16006695), (2697, 7519645), (2715, 7469791), (3045, 6660257), (3255, 6230563), (3561, 5695165), (3801, 5335565), (4495, 4511787), (5249, 3863685), (5611, 3614415), (5935, 3417099), (6293, 3222705), (6335, 3201339), (8309, 2440785), (13485, 1503929), (15747, 1287895), (16833, 1204805), (17805, 1139033), (18879, 1074235), (19005, 1067113), (24927, 813595), (26245, 772737), (28055, 722883), (31465, 644541), (34423, 589155), (36743, 551955), (36797, 551145), (39277, 516345), (41545, 488157), (78735, 257579), (84165, 240961), (94395, 214847), (103269, 196385), (110229, 183985), (110391, 183715), (117831, 172115), (124635, 162719)]