253478820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{603521}}^1$

素因数の和:603540

約数の個数: 48

約数和(自身を含む): 811133568

約数和(自身を除く): 557654748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 603521, 1207042, 1810563, 2414084, 3017605, 3621126, 4224647, 6035210, 7242252, 8449294, 9052815, 12070420, 12673941, 16898588, 18105630, 21123235, 25347882, 36211260, 42246470, 50695764, 63369705, 84492940, 126739410, 253478820]

約数ペア:

[(1, 253478820), (2, 126739410), (3, 84492940), (4, 63369705), (5, 50695764), (6, 42246470), (7, 36211260), (10, 25347882), (12, 21123235), (14, 18105630), (15, 16898588), (20, 12673941), (21, 12070420), (28, 9052815), (30, 8449294), (35, 7242252), (42, 6035210), (60, 4224647), (70, 3621126), (84, 3017605), (105, 2414084), (140, 1810563), (210, 1207042), (420, 603521)]