821567240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{42701}}^1$

素因数の和:42762

約数の個数: 64

約数和(自身を含む): 2044571760

約数和(自身を除く): 1223004520

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, 42701, 85402, 170804, 213505, 341608, 427010, 555113, 854020, 1110226, 1579937, 1708040, 2220452, 2775565, 3159874, 4440904, 5551130, 6319748, 7899685, 11102260, 12639496, 15799370, 20539181, 22204520, 31598740, 41078362, 63197480, 82156724, 102695905, 164313448, 205391810, 410783620, 821567240]

約数ペア:

[(1, 821567240), (2, 410783620), (4, 205391810), (5, 164313448), (8, 102695905), (10, 82156724), (13, 63197480), (20, 41078362), (26, 31598740), (37, 22204520), (40, 20539181), (52, 15799370), (65, 12639496), (74, 11102260), (104, 7899685), (130, 6319748), (148, 5551130), (185, 4440904), (260, 3159874), (296, 2775565), (370, 2220452), (481, 1708040), (520, 1579937), (740, 1110226), (962, 854020), (1480, 555113), (1924, 427010), (2405, 341608), (3848, 213505), (4810, 170804), (9620, 85402), (19240, 42701)]