281729348540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{811}}^1\times {\mathrm{991}}^1\times {\mathrm{1031}}^1$

素因数の和:2859

約数の個数: 96

約数和(自身を含む): 628447776768

約数和(自身を除く): 346718428228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 811, 991, 1031, 1622, 1982, 2062, 3244, 3964, 4055, 4124, 4955, 5155, 8110, 9910, 10310, 13787, 16220, 16847, 17527, 19820, 20620, 27574, 33694, 35054, 55148, 67388, 68935, 70108, 84235, 87635, 137870, 168470, 175270, 275740, 336940, 350540, 803701, 836141, 1021721, 1607402, 1672282, 2043442, 3214804, 3344564, 4018505, 4086884, 4180705, 5108605, 8037010, 8361410, 10217210, 13662917, 14214397, 16074020, 16722820, 17369257, 20434420, 27325834, 28428794, 34738514, 54651668, 56857588, 68314585, 69477028, 71071985, 86846285, 136629170, 142143970, 173692570, 273258340, 284287940, 347385140, 828615731, 1657231462, 3314462924, 4143078655, 8286157310, 14086467427, 16572314620, 28172934854, 56345869708, 70432337135, 140864674270, 281729348540]

約数ペア:

[(1, 281729348540), (2, 140864674270), (4, 70432337135), (5, 56345869708), (10, 28172934854), (17, 16572314620), (20, 14086467427), (34, 8286157310), (68, 4143078655), (85, 3314462924), (170, 1657231462), (340, 828615731), (811, 347385140), (991, 284287940), (1031, 273258340), (1622, 173692570), (1982, 142143970), (2062, 136629170), (3244, 86846285), (3964, 71071985), (4055, 69477028), (4124, 68314585), (4955, 56857588), (5155, 54651668), (8110, 34738514), (9910, 28428794), (10310, 27325834), (13787, 20434420), (16220, 17369257), (16847, 16722820), (17527, 16074020), (19820, 14214397), (20620, 13662917), (27574, 10217210), (33694, 8361410), (35054, 8037010), (55148, 5108605), (67388, 4180705), (68935, 4086884), (70108, 4018505), (84235, 3344564), (87635, 3214804), (137870, 2043442), (168470, 1672282), (175270, 1607402), (275740, 1021721), (336940, 836141), (350540, 803701)]