78171870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2371}}^1$

素因数の和:2545

約数の個数: 64

約数和(自身を含む): 215870976

約数和(自身を除く): 137699106

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 157, 210, 314, 471, 785, 942, 1099, 1570, 2198, 2355, 2371, 3297, 4710, 4742, 5495, 6594, 7113, 10990, 11855, 14226, 16485, 16597, 23710, 32970, 33194, 35565, 49791, 71130, 82985, 99582, 165970, 248955, 372247, 497910, 744494, 1116741, 1861235, 2233482, 2605729, 3722470, 5211458, 5583705, 7817187, 11167410, 13028645, 15634374, 26057290, 39085935, 78171870]

約数ペア:

[(1, 78171870), (2, 39085935), (3, 26057290), (5, 15634374), (6, 13028645), (7, 11167410), (10, 7817187), (14, 5583705), (15, 5211458), (21, 3722470), (30, 2605729), (35, 2233482), (42, 1861235), (70, 1116741), (105, 744494), (157, 497910), (210, 372247), (314, 248955), (471, 165970), (785, 99582), (942, 82985), (1099, 71130), (1570, 49791), (2198, 35565), (2355, 33194), (2371, 32970), (3297, 23710), (4710, 16597), (4742, 16485), (5495, 14226), (6594, 11855), (7113, 10990)]