12804512420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1866547}}^1$

素因数の和:1866577

約数の個数: 48

約数和(自身を含む): 31358006400

約数和(自身を除く): 18553493980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 1866547, 3733094, 7466188, 9332735, 13065829, 18665470, 26131658, 37330940, 52263316, 65329145, 91460803, 130658290, 182921606, 261316580, 365843212, 457304015, 640225621, 914608030, 1280451242, 1829216060, 2560902484, 3201128105, 6402256210, 12804512420]

約数ペア:

[(1, 12804512420), (2, 6402256210), (4, 3201128105), (5, 2560902484), (7, 1829216060), (10, 1280451242), (14, 914608030), (20, 640225621), (28, 457304015), (35, 365843212), (49, 261316580), (70, 182921606), (98, 130658290), (140, 91460803), (196, 65329145), (245, 52263316), (343, 37330940), (490, 26131658), (686, 18665470), (980, 13065829), (1372, 9332735), (1715, 7466188), (3430, 3733094), (6860, 1866547)]