20562940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1021}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 46357920

約数和(自身を除く): 25794980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1021, 1060, 2014, 2042, 4028, 4084, 5035, 5105, 10070, 10210, 19399, 20140, 20420, 38798, 54113, 77596, 96995, 108226, 193990, 216452, 270565, 387980, 541130, 1028147, 1082260, 2056294, 4112588, 5140735, 10281470, 20562940]

約数ペア:

[(1, 20562940), (2, 10281470), (4, 5140735), (5, 4112588), (10, 2056294), (19, 1082260), (20, 1028147), (38, 541130), (53, 387980), (76, 270565), (95, 216452), (106, 193990), (190, 108226), (212, 96995), (265, 77596), (380, 54113), (530, 38798), (1007, 20420), (1021, 20140), (1060, 19399), (2014, 10210), (2042, 10070), (4028, 5105), (4084, 5035)]