28721000812

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{315907}}^1$

素因数の和:316126

約数の個数: 48

約数和(自身を含む): 61139570688

約数和(自身を除く): 32418569876

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 191, 238, 382, 476, 764, 1337, 2674, 3247, 5348, 6494, 12988, 22729, 45458, 90916, 315907, 631814, 1263628, 2211349, 4422698, 5370419, 8845396, 10740838, 21481676, 37592933, 60338237, 75185866, 120676474, 150371732, 241352948, 422367659, 844735318, 1025750029, 1689470636, 2051500058, 4103000116, 7180250203, 14360500406, 28721000812]

約数ペア:

[(1, 28721000812), (2, 14360500406), (4, 7180250203), (7, 4103000116), (14, 2051500058), (17, 1689470636), (28, 1025750029), (34, 844735318), (68, 422367659), (119, 241352948), (191, 150371732), (238, 120676474), (382, 75185866), (476, 60338237), (764, 37592933), (1337, 21481676), (2674, 10740838), (3247, 8845396), (5348, 5370419), (6494, 4422698), (12988, 2211349), (22729, 1263628), (45458, 631814), (90916, 315907)]