28153580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 96

約数和(自身を含む): 75264000

約数和(自身を除く): 47110420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 182, 217, 260, 310, 364, 403, 434, 455, 499, 620, 806, 868, 910, 998, 1085, 1612, 1820, 1996, 2015, 2170, 2495, 2821, 3493, 4030, 4340, 4990, 5642, 6487, 6986, 8060, 9980, 11284, 12974, 13972, 14105, 15469, 17465, 25948, 28210, 30938, 32435, 34930, 45409, 56420, 61876, 64870, 69860, 77345, 90818, 108283, 129740, 154690, 181636, 201097, 216566, 227045, 309380, 402194, 433132, 454090, 541415, 804388, 908180, 1005485, 1082830, 1407679, 2010970, 2165660, 2815358, 4021940, 5630716, 7038395, 14076790, 28153580]

約数ペア:

[(1, 28153580), (2, 14076790), (4, 7038395), (5, 5630716), (7, 4021940), (10, 2815358), (13, 2165660), (14, 2010970), (20, 1407679), (26, 1082830), (28, 1005485), (31, 908180), (35, 804388), (52, 541415), (62, 454090), (65, 433132), (70, 402194), (91, 309380), (124, 227045), (130, 216566), (140, 201097), (155, 181636), (182, 154690), (217, 129740), (260, 108283), (310, 90818), (364, 77345), (403, 69860), (434, 64870), (455, 61876), (499, 56420), (620, 45409), (806, 34930), (868, 32435), (910, 30938), (998, 28210), (1085, 25948), (1612, 17465), (1820, 15469), (1996, 14105), (2015, 13972), (2170, 12974), (2495, 11284), (2821, 9980), (3493, 8060), (4030, 6986), (4340, 6487), (4990, 5642)]