20319344

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 40592640

約数和(自身を除く): 20273296

約数列:

[1, 2, 4, 8, 16, 61, 109, 122, 191, 218, 244, 382, 436, 488, 764, 872, 976, 1528, 1744, 3056, 6649, 11651, 13298, 20819, 23302, 26596, 41638, 46604, 53192, 83276, 93208, 106384, 166552, 186416, 333104, 1269959, 2539918, 5079836, 10159672, 20319344]

約数ペア:

[(1, 20319344), (2, 10159672), (4, 5079836), (8, 2539918), (16, 1269959), (61, 333104), (109, 186416), (122, 166552), (191, 106384), (218, 93208), (244, 83276), (382, 53192), (436, 46604), (488, 41638), (764, 26596), (872, 23302), (976, 20819), (1528, 13298), (1744, 11651), (3056, 6649)]