18818360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2251}}^1$

素因数の和:2292

約数の個数: 64

約数和(自身を含む): 48643200

約数和(自身を除く): 29824840

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 2251, 4180, 4502, 8360, 9004, 11255, 18008, 22510, 24761, 42769, 45020, 49522, 85538, 90040, 99044, 123805, 171076, 198088, 213845, 247610, 342152, 427690, 470459, 495220, 855380, 940918, 990440, 1710760, 1881836, 2352295, 3763672, 4704590, 9409180, 18818360]

約数ペア:

[(1, 18818360), (2, 9409180), (4, 4704590), (5, 3763672), (8, 2352295), (10, 1881836), (11, 1710760), (19, 990440), (20, 940918), (22, 855380), (38, 495220), (40, 470459), (44, 427690), (55, 342152), (76, 247610), (88, 213845), (95, 198088), (110, 171076), (152, 123805), (190, 99044), (209, 90040), (220, 85538), (380, 49522), (418, 45020), (440, 42769), (760, 24761), (836, 22510), (1045, 18008), (1672, 11255), (2090, 9004), (2251, 8360), (4180, 4502)]