209008510

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 408913920

約数和(自身を除く): 199905410

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 67, 134, 145, 155, 290, 310, 335, 347, 670, 694, 899, 1735, 1798, 1943, 2077, 3470, 3886, 4154, 4495, 8990, 9715, 10063, 10385, 10757, 19430, 20126, 20770, 21514, 23249, 46498, 50315, 53785, 60233, 100630, 107570, 116245, 120466, 232490, 301165, 311953, 602330, 623906, 674221, 720719, 1348442, 1441438, 1559765, 3119530, 3371105, 3603595, 6742210, 7207190, 20900851, 41801702, 104504255, 209008510]

約数ペア:

[(1, 209008510), (2, 104504255), (5, 41801702), (10, 20900851), (29, 7207190), (31, 6742210), (58, 3603595), (62, 3371105), (67, 3119530), (134, 1559765), (145, 1441438), (155, 1348442), (290, 720719), (310, 674221), (335, 623906), (347, 602330), (670, 311953), (694, 301165), (899, 232490), (1735, 120466), (1798, 116245), (1943, 107570), (2077, 100630), (3470, 60233), (3886, 53785), (4154, 50315), (4495, 46498), (8990, 23249), (9715, 21514), (10063, 20770), (10385, 20126), (10757, 19430)]