20512897700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{937}}^1\times {\mathrm{7549}}^1$

素因数の和:8529

約数の個数: 72

約数和(自身を含む): 46103169000

約数和(自身を除く): 25590271300

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 937, 1450, 1874, 2900, 3748, 4685, 7549, 9370, 15098, 18740, 23425, 27173, 30196, 37745, 46850, 54346, 75490, 93700, 108692, 135865, 150980, 188725, 218921, 271730, 377450, 437842, 543460, 679325, 754900, 875684, 1094605, 1358650, 2189210, 2717300, 4378420, 5473025, 7073413, 10946050, 14146826, 21892100, 28293652, 35367065, 70734130, 141468260, 176835325, 205128977, 353670650, 410257954, 707341300, 820515908, 1025644885, 2051289770, 4102579540, 5128224425, 10256448850, 20512897700]

約数ペア:

[(1, 20512897700), (2, 10256448850), (4, 5128224425), (5, 4102579540), (10, 2051289770), (20, 1025644885), (25, 820515908), (29, 707341300), (50, 410257954), (58, 353670650), (100, 205128977), (116, 176835325), (145, 141468260), (290, 70734130), (580, 35367065), (725, 28293652), (937, 21892100), (1450, 14146826), (1874, 10946050), (2900, 7073413), (3748, 5473025), (4685, 4378420), (7549, 2717300), (9370, 2189210), (15098, 1358650), (18740, 1094605), (23425, 875684), (27173, 754900), (30196, 679325), (37745, 543460), (46850, 437842), (54346, 377450), (75490, 271730), (93700, 218921), (108692, 188725), (135865, 150980)]