220763648

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2043

約数の個数: 80

約数和(自身を含む): 520633344

約数和(自身を除く): 299869696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1736, 1792, 1984, 1987, 3472, 3584, 3968, 3974, 6944, 7936, 7948, 13888, 13909, 15872, 15896, 27776, 27818, 31792, 55552, 55636, 61597, 63584, 111104, 111272, 123194, 127168, 222544, 246388, 254336, 431179, 445088, 492776, 508672, 862358, 890176, 985552, 1017344, 1724716, 1780352, 1971104, 3449432, 3560704, 3942208, 6898864, 7121408, 7884416, 13797728, 15768832, 27595456, 31537664, 55190912, 110381824, 220763648]

約数ペア:

[(1, 220763648), (2, 110381824), (4, 55190912), (7, 31537664), (8, 27595456), (14, 15768832), (16, 13797728), (28, 7884416), (31, 7121408), (32, 6898864), (56, 3942208), (62, 3560704), (64, 3449432), (112, 1971104), (124, 1780352), (128, 1724716), (217, 1017344), (224, 985552), (248, 890176), (256, 862358), (434, 508672), (448, 492776), (496, 445088), (512, 431179), (868, 254336), (896, 246388), (992, 222544), (1736, 127168), (1792, 123194), (1984, 111272), (1987, 111104), (3472, 63584), (3584, 61597), (3968, 55636), (3974, 55552), (6944, 31792), (7936, 27818), (7948, 27776), (13888, 15896), (13909, 15872)]