15561904

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:413

約数の個数: 40

約数和(自身を含む): 31400768

約数和(自身を除く): 15838864

約数列:

[1, 2, 4, 8, 16, 37, 74, 97, 148, 194, 271, 296, 388, 542, 592, 776, 1084, 1552, 2168, 3589, 4336, 7178, 10027, 14356, 20054, 26287, 28712, 40108, 52574, 57424, 80216, 105148, 160432, 210296, 420592, 972619, 1945238, 3890476, 7780952, 15561904]

約数ペア:

[(1, 15561904), (2, 7780952), (4, 3890476), (8, 1945238), (16, 972619), (37, 420592), (74, 210296), (97, 160432), (148, 105148), (194, 80216), (271, 57424), (296, 52574), (388, 40108), (542, 28712), (592, 26287), (776, 20054), (1084, 14356), (1552, 10027), (2168, 7178), (3589, 4336)]