30693980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 66349920

約数和(自身を除く): 35655940

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 181, 244, 278, 305, 362, 556, 610, 695, 724, 905, 1220, 1390, 1810, 2780, 3620, 8479, 11041, 16958, 22082, 25159, 33916, 42395, 44164, 50318, 55205, 84790, 100636, 110410, 125795, 169580, 220820, 251590, 503180, 1534699, 3069398, 6138796, 7673495, 15346990, 30693980]

約数ペア:

[(1, 30693980), (2, 15346990), (4, 7673495), (5, 6138796), (10, 3069398), (20, 1534699), (61, 503180), (122, 251590), (139, 220820), (181, 169580), (244, 125795), (278, 110410), (305, 100636), (362, 84790), (556, 55205), (610, 50318), (695, 44164), (724, 42395), (905, 33916), (1220, 25159), (1390, 22082), (1810, 16958), (2780, 11041), (3620, 8479)]