61556840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 143078400

約数和(自身を除く): 81521560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 137, 188, 235, 239, 274, 376, 470, 478, 548, 685, 940, 956, 1096, 1195, 1370, 1880, 1912, 2390, 2740, 4780, 5480, 6439, 9560, 11233, 12878, 22466, 25756, 32195, 32743, 44932, 51512, 56165, 64390, 65486, 89864, 112330, 128780, 130972, 163715, 224660, 257560, 261944, 327430, 449320, 654860, 1309720, 1538921, 3077842, 6155684, 7694605, 12311368, 15389210, 30778420, 61556840]

約数ペア:

[(1, 61556840), (2, 30778420), (4, 15389210), (5, 12311368), (8, 7694605), (10, 6155684), (20, 3077842), (40, 1538921), (47, 1309720), (94, 654860), (137, 449320), (188, 327430), (235, 261944), (239, 257560), (274, 224660), (376, 163715), (470, 130972), (478, 128780), (548, 112330), (685, 89864), (940, 65486), (956, 64390), (1096, 56165), (1195, 51512), (1370, 44932), (1880, 32743), (1912, 32195), (2390, 25756), (2740, 22466), (4780, 12878), (5480, 11233), (6439, 9560)]