20515147264

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{30059}}^1$

素因数の和:30151

約数の個数: 80

約数和(自身を含む): 43297943040

約数和(自身を除く): 22782795776

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 128, 172, 248, 256, 344, 496, 512, 688, 992, 1333, 1376, 1984, 2666, 2752, 3968, 5332, 5504, 7936, 10664, 11008, 15872, 21328, 22016, 30059, 42656, 60118, 85312, 120236, 170624, 240472, 341248, 480944, 682496, 931829, 961888, 1292537, 1863658, 1923776, 2585074, 3727316, 3847552, 5170148, 7454632, 7695104, 10340296, 14909264, 15390208, 20680592, 29818528, 40068647, 41361184, 59637056, 80137294, 82722368, 119274112, 160274588, 165444736, 238548224, 320549176, 330889472, 477096448, 641098352, 661778944, 1282196704, 2564393408, 5128786816, 10257573632, 20515147264]

約数ペア:

[(1, 20515147264), (2, 10257573632), (4, 5128786816), (8, 2564393408), (16, 1282196704), (31, 661778944), (32, 641098352), (43, 477096448), (62, 330889472), (64, 320549176), (86, 238548224), (124, 165444736), (128, 160274588), (172, 119274112), (248, 82722368), (256, 80137294), (344, 59637056), (496, 41361184), (512, 40068647), (688, 29818528), (992, 20680592), (1333, 15390208), (1376, 14909264), (1984, 10340296), (2666, 7695104), (2752, 7454632), (3968, 5170148), (5332, 3847552), (5504, 3727316), (7936, 2585074), (10664, 1923776), (11008, 1863658), (15872, 1292537), (21328, 961888), (22016, 931829), (30059, 682496), (42656, 480944), (60118, 341248), (85312, 240472), (120236, 170624)]