28136220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2161}}^1$

素因数の和:2211

約数の個数: 96

約数和(自身を含む): 92983296

約数和(自身を除く): 64847076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2161, 2170, 2604, 3255, 4322, 4340, 6483, 6510, 8644, 10805, 12966, 13020, 15127, 21610, 25932, 30254, 32415, 43220, 45381, 60508, 64830, 66991, 75635, 90762, 129660, 133982, 151270, 181524, 200973, 226905, 267964, 302540, 334955, 401946, 453810, 468937, 669910, 803892, 907620, 937874, 1004865, 1339820, 1406811, 1875748, 2009730, 2344685, 2813622, 4019460, 4689370, 5627244, 7034055, 9378740, 14068110, 28136220]

約数ペア:

[(1, 28136220), (2, 14068110), (3, 9378740), (4, 7034055), (5, 5627244), (6, 4689370), (7, 4019460), (10, 2813622), (12, 2344685), (14, 2009730), (15, 1875748), (20, 1406811), (21, 1339820), (28, 1004865), (30, 937874), (31, 907620), (35, 803892), (42, 669910), (60, 468937), (62, 453810), (70, 401946), (84, 334955), (93, 302540), (105, 267964), (124, 226905), (140, 200973), (155, 181524), (186, 151270), (210, 133982), (217, 129660), (310, 90762), (372, 75635), (420, 66991), (434, 64830), (465, 60508), (620, 45381), (651, 43220), (868, 32415), (930, 30254), (1085, 25932), (1302, 21610), (1860, 15127), (2161, 13020), (2170, 12966), (2604, 10805), (3255, 8644), (4322, 6510), (4340, 6483)]