9979900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 25310880

約数和(自身を除く): 15330980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 269, 350, 371, 530, 538, 700, 742, 1060, 1076, 1325, 1345, 1484, 1855, 1883, 2650, 2690, 3710, 3766, 5300, 5380, 6725, 7420, 7532, 9275, 9415, 13450, 14257, 18550, 18830, 26900, 28514, 37100, 37660, 47075, 57028, 71285, 94150, 99799, 142570, 188300, 199598, 285140, 356425, 399196, 498995, 712850, 997990, 1425700, 1995980, 2494975, 4989950, 9979900]

約数ペア:

[(1, 9979900), (2, 4989950), (4, 2494975), (5, 1995980), (7, 1425700), (10, 997990), (14, 712850), (20, 498995), (25, 399196), (28, 356425), (35, 285140), (50, 199598), (53, 188300), (70, 142570), (100, 99799), (106, 94150), (140, 71285), (175, 57028), (212, 47075), (265, 37660), (269, 37100), (350, 28514), (371, 26900), (530, 18830), (538, 18550), (700, 14257), (742, 13450), (1060, 9415), (1076, 9275), (1325, 7532), (1345, 7420), (1484, 6725), (1855, 5380), (1883, 5300), (2650, 3766), (2690, 3710)]