20449980304

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1\times {\mathrm{3863}}^1$

素因数の和:4736

約数の個数: 80

約数和(自身を含む): 44111176704

約数和(自身を除く): 23661196400

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 821, 1612, 1642, 3224, 3284, 3863, 6448, 6568, 7726, 10673, 13136, 15452, 21346, 25451, 30904, 42692, 50219, 50902, 61808, 85384, 100438, 101804, 119753, 170768, 200876, 203608, 239506, 330863, 401752, 407216, 479012, 661726, 803504, 958024, 1323452, 1556789, 1916048, 2646904, 3113578, 3171523, 5293808, 6227156, 6343046, 12454312, 12686092, 24908624, 25372184, 41229799, 50744368, 82459598, 98317213, 164919196, 196634426, 329838392, 393268852, 659676784, 786537704, 1278123769, 1573075408, 2556247538, 5112495076, 10224990152, 20449980304]

約数ペア:

[(1, 20449980304), (2, 10224990152), (4, 5112495076), (8, 2556247538), (13, 1573075408), (16, 1278123769), (26, 786537704), (31, 659676784), (52, 393268852), (62, 329838392), (104, 196634426), (124, 164919196), (208, 98317213), (248, 82459598), (403, 50744368), (496, 41229799), (806, 25372184), (821, 24908624), (1612, 12686092), (1642, 12454312), (3224, 6343046), (3284, 6227156), (3863, 5293808), (6448, 3171523), (6568, 3113578), (7726, 2646904), (10673, 1916048), (13136, 1556789), (15452, 1323452), (21346, 958024), (25451, 803504), (30904, 661726), (42692, 479012), (50219, 407216), (50902, 401752), (61808, 330863), (85384, 239506), (100438, 203608), (101804, 200876), (119753, 170768)]