78412400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:351

約数の個数: 120

約数和(自身を含む): 209236608

約数和(自身を除く): 130824208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 71, 80, 88, 100, 110, 142, 176, 200, 220, 251, 275, 284, 355, 400, 440, 502, 550, 568, 710, 781, 880, 1004, 1100, 1136, 1255, 1420, 1562, 1775, 2008, 2200, 2510, 2761, 2840, 3124, 3550, 3905, 4016, 4400, 5020, 5522, 5680, 6248, 6275, 7100, 7810, 10040, 11044, 12496, 12550, 13805, 14200, 15620, 17821, 19525, 20080, 22088, 25100, 27610, 28400, 31240, 35642, 39050, 44176, 50200, 55220, 62480, 69025, 71284, 78100, 89105, 100400, 110440, 138050, 142568, 156200, 178210, 196031, 220880, 276100, 285136, 312400, 356420, 392062, 445525, 552200, 712840, 784124, 891050, 980155, 1104400, 1425680, 1568248, 1782100, 1960310, 3136496, 3564200, 3920620, 4900775, 7128400, 7841240, 9801550, 15682480, 19603100, 39206200, 78412400]

約数ペア:

[(1, 78412400), (2, 39206200), (4, 19603100), (5, 15682480), (8, 9801550), (10, 7841240), (11, 7128400), (16, 4900775), (20, 3920620), (22, 3564200), (25, 3136496), (40, 1960310), (44, 1782100), (50, 1568248), (55, 1425680), (71, 1104400), (80, 980155), (88, 891050), (100, 784124), (110, 712840), (142, 552200), (176, 445525), (200, 392062), (220, 356420), (251, 312400), (275, 285136), (284, 276100), (355, 220880), (400, 196031), (440, 178210), (502, 156200), (550, 142568), (568, 138050), (710, 110440), (781, 100400), (880, 89105), (1004, 78100), (1100, 71284), (1136, 69025), (1255, 62480), (1420, 55220), (1562, 50200), (1775, 44176), (2008, 39050), (2200, 35642), (2510, 31240), (2761, 28400), (2840, 27610), (3124, 25100), (3550, 22088), (3905, 20080), (4016, 19525), (4400, 17821), (5020, 15620), (5522, 14200), (5680, 13805), (6248, 12550), (6275, 12496), (7100, 11044), (7810, 10040)]