28139056

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2621}}^1$

素因数の和:2701

約数の個数: 40

約数和(自身を含む): 60473808

約数和(自身を除く): 32334752

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 2621, 2684, 5242, 5368, 10484, 10736, 20968, 28831, 41936, 57662, 115324, 159881, 230648, 319762, 461296, 639524, 1279048, 1758691, 2558096, 3517382, 7034764, 14069528, 28139056]

約数ペア:

[(1, 28139056), (2, 14069528), (4, 7034764), (8, 3517382), (11, 2558096), (16, 1758691), (22, 1279048), (44, 639524), (61, 461296), (88, 319762), (122, 230648), (176, 159881), (244, 115324), (488, 57662), (671, 41936), (976, 28831), (1342, 20968), (2621, 10736), (2684, 10484), (5242, 5368)]