1900256140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{4463}}^1$

素因数の和:4882

約数の個数: 48

約数和(自身を含む): 4068489600

約数和(自身を除く): 2168233460

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 349, 610, 698, 1220, 1396, 1745, 3490, 4463, 6980, 8926, 17852, 21289, 22315, 42578, 44630, 85156, 89260, 106445, 212890, 272243, 425780, 544486, 1088972, 1361215, 1557587, 2722430, 3115174, 5444860, 6230348, 7787935, 15575870, 31151740, 95012807, 190025614, 380051228, 475064035, 950128070, 1900256140]

約数ペア:

[(1, 1900256140), (2, 950128070), (4, 475064035), (5, 380051228), (10, 190025614), (20, 95012807), (61, 31151740), (122, 15575870), (244, 7787935), (305, 6230348), (349, 5444860), (610, 3115174), (698, 2722430), (1220, 1557587), (1396, 1361215), (1745, 1088972), (3490, 544486), (4463, 425780), (6980, 272243), (8926, 212890), (17852, 106445), (21289, 89260), (22315, 85156), (42578, 44630)]