20819744

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:334

約数の個数: 72

約数和(自身を含む): 47592720

約数和(自身を除く): 26772976

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 121, 152, 176, 209, 242, 283, 304, 352, 418, 484, 566, 608, 836, 968, 1132, 1672, 1936, 2264, 2299, 3113, 3344, 3872, 4528, 4598, 5377, 6226, 6688, 9056, 9196, 10754, 12452, 18392, 21508, 24904, 34243, 36784, 43016, 49808, 59147, 68486, 73568, 86032, 99616, 118294, 136972, 172064, 236588, 273944, 473176, 547888, 650617, 946352, 1095776, 1301234, 1892704, 2602468, 5204936, 10409872, 20819744]

約数ペア:

[(1, 20819744), (2, 10409872), (4, 5204936), (8, 2602468), (11, 1892704), (16, 1301234), (19, 1095776), (22, 946352), (32, 650617), (38, 547888), (44, 473176), (76, 273944), (88, 236588), (121, 172064), (152, 136972), (176, 118294), (209, 99616), (242, 86032), (283, 73568), (304, 68486), (352, 59147), (418, 49808), (484, 43016), (566, 36784), (608, 34243), (836, 24904), (968, 21508), (1132, 18392), (1672, 12452), (1936, 10754), (2264, 9196), (2299, 9056), (3113, 6688), (3344, 6226), (3872, 5377), (4528, 4598)]