20669154256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{860641}}^1$

素因数の和:860747

約数の個数: 40

約数和(自身を含む): 42687843200

約数和(自身を除く): 22018688944

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 304, 316, 632, 1264, 1501, 3002, 6004, 12008, 24016, 860641, 1721282, 3442564, 6885128, 13770256, 16352179, 32704358, 65408716, 67990639, 130817432, 135981278, 261634864, 271962556, 543925112, 1087850224, 1291822141, 2583644282, 5167288564, 10334577128, 20669154256]

約数ペア:

[(1, 20669154256), (2, 10334577128), (4, 5167288564), (8, 2583644282), (16, 1291822141), (19, 1087850224), (38, 543925112), (76, 271962556), (79, 261634864), (152, 135981278), (158, 130817432), (304, 67990639), (316, 65408716), (632, 32704358), (1264, 16352179), (1501, 13770256), (3002, 6885128), (6004, 3442564), (12008, 1721282), (24016, 860641)]