28367820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:486

約数の個数: 144

約数和(自身を含む): 96314400

約数和(自身を除く): 67946580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 243, 260, 270, 324, 351, 390, 405, 449, 468, 486, 540, 585, 702, 780, 810, 898, 972, 1053, 1170, 1215, 1347, 1404, 1620, 1755, 1796, 2106, 2245, 2340, 2430, 2694, 3159, 3510, 4041, 4212, 4490, 4860, 5265, 5388, 5837, 6318, 6735, 7020, 8082, 8980, 10530, 11674, 12123, 12636, 13470, 15795, 16164, 17511, 20205, 21060, 23348, 24246, 26940, 29185, 31590, 35022, 36369, 40410, 48492, 52533, 58370, 60615, 63180, 70044, 72738, 80820, 87555, 105066, 109107, 116740, 121230, 145476, 157599, 175110, 181845, 210132, 218214, 242460, 262665, 315198, 350220, 363690, 436428, 472797, 525330, 545535, 630396, 727380, 787995, 945594, 1050660, 1091070, 1418391, 1575990, 1891188, 2182140, 2363985, 2836782, 3151980, 4727970, 5673564, 7091955, 9455940, 14183910, 28367820]

約数ペア:

[(1, 28367820), (2, 14183910), (3, 9455940), (4, 7091955), (5, 5673564), (6, 4727970), (9, 3151980), (10, 2836782), (12, 2363985), (13, 2182140), (15, 1891188), (18, 1575990), (20, 1418391), (26, 1091070), (27, 1050660), (30, 945594), (36, 787995), (39, 727380), (45, 630396), (52, 545535), (54, 525330), (60, 472797), (65, 436428), (78, 363690), (81, 350220), (90, 315198), (108, 262665), (117, 242460), (130, 218214), (135, 210132), (156, 181845), (162, 175110), (180, 157599), (195, 145476), (234, 121230), (243, 116740), (260, 109107), (270, 105066), (324, 87555), (351, 80820), (390, 72738), (405, 70044), (449, 63180), (468, 60615), (486, 58370), (540, 52533), (585, 48492), (702, 40410), (780, 36369), (810, 35022), (898, 31590), (972, 29185), (1053, 26940), (1170, 24246), (1215, 23348), (1347, 21060), (1404, 20205), (1620, 17511), (1755, 16164), (1796, 15795), (2106, 13470), (2245, 12636), (2340, 12123), (2430, 11674), (2694, 10530), (3159, 8980), (3510, 8082), (4041, 7020), (4212, 6735), (4490, 6318), (4860, 5837), (5265, 5388)]