2912090900

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{349}}^1\times {\mathrm{461}}^1$

素因数の和:1005

約数の個数: 72

約数和(自身を含む): 6386179800

約数和(自身を除く): 3474088900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 349, 362, 461, 698, 724, 905, 922, 1396, 1745, 1810, 1844, 2305, 3490, 3620, 4525, 4610, 6980, 8725, 9050, 9220, 11525, 17450, 18100, 23050, 34900, 46100, 63169, 83441, 126338, 160889, 166882, 252676, 315845, 321778, 333764, 417205, 631690, 643556, 804445, 834410, 1263380, 1579225, 1608890, 1668820, 2086025, 3158450, 3217780, 4022225, 4172050, 6316900, 8044450, 8344100, 16088900, 29120909, 58241818, 116483636, 145604545, 291209090, 582418180, 728022725, 1456045450, 2912090900]

約数ペア:

[(1, 2912090900), (2, 1456045450), (4, 728022725), (5, 582418180), (10, 291209090), (20, 145604545), (25, 116483636), (50, 58241818), (100, 29120909), (181, 16088900), (349, 8344100), (362, 8044450), (461, 6316900), (698, 4172050), (724, 4022225), (905, 3217780), (922, 3158450), (1396, 2086025), (1745, 1668820), (1810, 1608890), (1844, 1579225), (2305, 1263380), (3490, 834410), (3620, 804445), (4525, 643556), (4610, 631690), (6980, 417205), (8725, 333764), (9050, 321778), (9220, 315845), (11525, 252676), (17450, 166882), (18100, 160889), (23050, 126338), (34900, 83441), (46100, 63169)]