20109130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21259190

約数列:

[1, 2, 5, 10, 17, 23, 34, 37, 46, 74, 85, 115, 139, 170, 185, 230, 278, 370, 391, 629, 695, 782, 851, 1258, 1390, 1702, 1955, 2363, 3145, 3197, 3910, 4255, 4726, 5143, 6290, 6394, 8510, 10286, 11815, 14467, 15985, 23630, 25715, 28934, 31970, 51430, 54349, 72335, 87431, 108698, 118289, 144670, 174862, 236578, 271745, 437155, 543490, 591445, 874310, 1182890, 2010913, 4021826, 10054565, 20109130]

約数ペア:

[(1, 20109130), (2, 10054565), (5, 4021826), (10, 2010913), (17, 1182890), (23, 874310), (34, 591445), (37, 543490), (46, 437155), (74, 271745), (85, 236578), (115, 174862), (139, 144670), (170, 118289), (185, 108698), (230, 87431), (278, 72335), (370, 54349), (391, 51430), (629, 31970), (695, 28934), (782, 25715), (851, 23630), (1258, 15985), (1390, 14467), (1702, 11815), (1955, 10286), (2363, 8510), (3145, 6394), (3197, 6290), (3910, 5143), (4255, 4726)]