28154520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 95040000

約数和(自身を除く): 66885480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 131, 135, 180, 199, 216, 262, 270, 360, 393, 398, 524, 540, 597, 655, 786, 796, 995, 1048, 1080, 1179, 1194, 1310, 1572, 1592, 1791, 1965, 1990, 2358, 2388, 2620, 2985, 3144, 3537, 3582, 3930, 3980, 4716, 4776, 5240, 5373, 5895, 5970, 7074, 7164, 7860, 7960, 8955, 9432, 10746, 11790, 11940, 14148, 14328, 15720, 17685, 17910, 21492, 23580, 23880, 26069, 26865, 28296, 35370, 35820, 42984, 47160, 52138, 53730, 70740, 71640, 78207, 104276, 107460, 130345, 141480, 156414, 208552, 214920, 234621, 260690, 312828, 391035, 469242, 521380, 625656, 703863, 782070, 938484, 1042760, 1173105, 1407726, 1564140, 1876968, 2346210, 2815452, 3128280, 3519315, 4692420, 5630904, 7038630, 9384840, 14077260, 28154520]

約数ペア:

[(1, 28154520), (2, 14077260), (3, 9384840), (4, 7038630), (5, 5630904), (6, 4692420), (8, 3519315), (9, 3128280), (10, 2815452), (12, 2346210), (15, 1876968), (18, 1564140), (20, 1407726), (24, 1173105), (27, 1042760), (30, 938484), (36, 782070), (40, 703863), (45, 625656), (54, 521380), (60, 469242), (72, 391035), (90, 312828), (108, 260690), (120, 234621), (131, 214920), (135, 208552), (180, 156414), (199, 141480), (216, 130345), (262, 107460), (270, 104276), (360, 78207), (393, 71640), (398, 70740), (524, 53730), (540, 52138), (597, 47160), (655, 42984), (786, 35820), (796, 35370), (995, 28296), (1048, 26865), (1080, 26069), (1179, 23880), (1194, 23580), (1310, 21492), (1572, 17910), (1592, 17685), (1791, 15720), (1965, 14328), (1990, 14148), (2358, 11940), (2388, 11790), (2620, 10746), (2985, 9432), (3144, 8955), (3537, 7960), (3582, 7860), (3930, 7164), (3980, 7074), (4716, 5970), (4776, 5895), (5240, 5373)]