21244400

素因数分解:

$2^4\times 5^2\times {\mathrm{173}}^1\times {\mathrm{307}}^1$

素因数の和:498

約数の個数: 60

約数和(自身を含む): 51501912

約数和(自身を除く): 30257512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 173, 200, 307, 346, 400, 614, 692, 865, 1228, 1384, 1535, 1730, 2456, 2768, 3070, 3460, 4325, 4912, 6140, 6920, 7675, 8650, 12280, 13840, 15350, 17300, 24560, 30700, 34600, 53111, 61400, 69200, 106222, 122800, 212444, 265555, 424888, 531110, 849776, 1062220, 1327775, 2124440, 2655550, 4248880, 5311100, 10622200, 21244400]

約数ペア:

[(1, 21244400), (2, 10622200), (4, 5311100), (5, 4248880), (8, 2655550), (10, 2124440), (16, 1327775), (20, 1062220), (25, 849776), (40, 531110), (50, 424888), (80, 265555), (100, 212444), (173, 122800), (200, 106222), (307, 69200), (346, 61400), (400, 53111), (614, 34600), (692, 30700), (865, 24560), (1228, 17300), (1384, 15350), (1535, 13840), (1730, 12280), (2456, 8650), (2768, 7675), (3070, 6920), (3460, 6140), (4325, 4912)]