20538642280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1067497}}^1$

素因数の和:1067558

約数の個数: 64

約数和(自身を含む): 51111804240

約数和(自身を除く): 30573161960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1924, 2405, 3848, 4810, 9620, 19240, 1067497, 2134994, 4269988, 5337485, 8539976, 10674970, 13877461, 21349940, 27754922, 39497389, 42699880, 55509844, 69387305, 78994778, 111019688, 138774610, 157989556, 197486945, 277549220, 315979112, 394973890, 513466057, 555098440, 789947780, 1026932114, 1579895560, 2053864228, 2567330285, 4107728456, 5134660570, 10269321140, 20538642280]

約数ペア:

[(1, 20538642280), (2, 10269321140), (4, 5134660570), (5, 4107728456), (8, 2567330285), (10, 2053864228), (13, 1579895560), (20, 1026932114), (26, 789947780), (37, 555098440), (40, 513466057), (52, 394973890), (65, 315979112), (74, 277549220), (104, 197486945), (130, 157989556), (148, 138774610), (185, 111019688), (260, 78994778), (296, 69387305), (370, 55509844), (481, 42699880), (520, 39497389), (740, 27754922), (962, 21349940), (1480, 13877461), (1924, 10674970), (2405, 8539976), (3848, 5337485), (4810, 4269988), (9620, 2134994), (19240, 1067497)]