27941780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 65032800

約数和(自身を除く): 37091020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 139, 190, 230, 278, 380, 437, 460, 529, 556, 695, 874, 1058, 1390, 1748, 2116, 2185, 2641, 2645, 2780, 3197, 4370, 5282, 5290, 6394, 8740, 10051, 10564, 10580, 12788, 13205, 15985, 20102, 26410, 31970, 40204, 50255, 52820, 60743, 63940, 73531, 100510, 121486, 147062, 201020, 242972, 294124, 303715, 367655, 607430, 735310, 1214860, 1397089, 1470620, 2794178, 5588356, 6985445, 13970890, 27941780]

約数ペア:

[(1, 27941780), (2, 13970890), (4, 6985445), (5, 5588356), (10, 2794178), (19, 1470620), (20, 1397089), (23, 1214860), (38, 735310), (46, 607430), (76, 367655), (92, 303715), (95, 294124), (115, 242972), (139, 201020), (190, 147062), (230, 121486), (278, 100510), (380, 73531), (437, 63940), (460, 60743), (529, 52820), (556, 50255), (695, 40204), (874, 31970), (1058, 26410), (1390, 20102), (1748, 15985), (2116, 13205), (2185, 12788), (2641, 10580), (2645, 10564), (2780, 10051), (3197, 8740), (4370, 6394), (5282, 5290)]