40819940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1811}}^1$

素因数の和:1857

約数の個数: 72

約数和(自身を含む): 104110272

約数和(自身を除く): 63290332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 1811, 2254, 3220, 3622, 4508, 5635, 7244, 9055, 11270, 12677, 18110, 22540, 25354, 36220, 41653, 50708, 63385, 83306, 88739, 126770, 166612, 177478, 208265, 253540, 291571, 354956, 416530, 443695, 583142, 833060, 887390, 1166284, 1457855, 1774780, 2040997, 2915710, 4081994, 5831420, 8163988, 10204985, 20409970, 40819940]

約数ペア:

[(1, 40819940), (2, 20409970), (4, 10204985), (5, 8163988), (7, 5831420), (10, 4081994), (14, 2915710), (20, 2040997), (23, 1774780), (28, 1457855), (35, 1166284), (46, 887390), (49, 833060), (70, 583142), (92, 443695), (98, 416530), (115, 354956), (140, 291571), (161, 253540), (196, 208265), (230, 177478), (245, 166612), (322, 126770), (460, 88739), (490, 83306), (644, 63385), (805, 50708), (980, 41653), (1127, 36220), (1610, 25354), (1811, 22540), (2254, 18110), (3220, 12677), (3622, 11270), (4508, 9055), (5635, 7244)]