20878592

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 48663552

約数和(自身を除く): 27784960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 191, 224, 244, 256, 382, 427, 448, 488, 764, 854, 896, 976, 1337, 1528, 1708, 1792, 1952, 2674, 3056, 3416, 3904, 5348, 6112, 6832, 7808, 10696, 11651, 12224, 13664, 15616, 21392, 23302, 24448, 27328, 42784, 46604, 48896, 54656, 81557, 85568, 93208, 109312, 163114, 171136, 186416, 326228, 342272, 372832, 652456, 745664, 1304912, 1491328, 2609824, 2982656, 5219648, 10439296, 20878592]

約数ペア:

[(1, 20878592), (2, 10439296), (4, 5219648), (7, 2982656), (8, 2609824), (14, 1491328), (16, 1304912), (28, 745664), (32, 652456), (56, 372832), (61, 342272), (64, 326228), (112, 186416), (122, 171136), (128, 163114), (191, 109312), (224, 93208), (244, 85568), (256, 81557), (382, 54656), (427, 48896), (448, 46604), (488, 42784), (764, 27328), (854, 24448), (896, 23302), (976, 21392), (1337, 15616), (1528, 13664), (1708, 12224), (1792, 11651), (1952, 10696), (2674, 7808), (3056, 6832), (3416, 6112), (3904, 5348)]