20120040100

素因数分解:

$2^2\times 5^2\times {\mathrm{653}}^1\times {\mathrm{308117}}^1$

素因数の和:308784

約数の個数: 36

約数和(自身を含む): 43727490324

約数和(自身を除く): 23607450224

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 653, 1306, 2612, 3265, 6530, 13060, 16325, 32650, 65300, 308117, 616234, 1232468, 1540585, 3081170, 6162340, 7702925, 15405850, 30811700, 201200401, 402400802, 804801604, 1006002005, 2012004010, 4024008020, 5030010025, 10060020050, 20120040100]

約数ペア:

[(1, 20120040100), (2, 10060020050), (4, 5030010025), (5, 4024008020), (10, 2012004010), (20, 1006002005), (25, 804801604), (50, 402400802), (100, 201200401), (653, 30811700), (1306, 15405850), (2612, 7702925), (3265, 6162340), (6530, 3081170), (13060, 1540585), (16325, 1232468), (32650, 616234), (65300, 308117)]