78426680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2789}}^1$

素因数の和:2856

約数の個数: 64

約数和(自身を含む): 190836000

約数和(自身を除く): 112409320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2789, 2812, 3515, 5578, 5624, 7030, 11156, 13945, 14060, 22312, 27890, 28120, 52991, 55780, 103193, 105982, 111560, 206386, 211964, 264955, 412772, 423928, 515965, 529910, 825544, 1031930, 1059820, 1960667, 2063860, 2119640, 3921334, 4127720, 7842668, 9803335, 15685336, 19606670, 39213340, 78426680]

約数ペア:

[(1, 78426680), (2, 39213340), (4, 19606670), (5, 15685336), (8, 9803335), (10, 7842668), (19, 4127720), (20, 3921334), (37, 2119640), (38, 2063860), (40, 1960667), (74, 1059820), (76, 1031930), (95, 825544), (148, 529910), (152, 515965), (185, 423928), (190, 412772), (296, 264955), (370, 211964), (380, 206386), (703, 111560), (740, 105982), (760, 103193), (1406, 55780), (1480, 52991), (2789, 28120), (2812, 27890), (3515, 22312), (5578, 14060), (5624, 13945), (7030, 11156)]