78840580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43319}}^1$

素因数の和:43348

約数の個数: 48

約数和(自身を含む): 203777280

約数和(自身を除く): 124936700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 43319, 86638, 173276, 216595, 303233, 433190, 563147, 606466, 866380, 1126294, 1212932, 1516165, 2252588, 2815735, 3032330, 3942029, 5631470, 6064660, 7884058, 11262940, 15768116, 19710145, 39420290, 78840580]

約数ペア:

[(1, 78840580), (2, 39420290), (4, 19710145), (5, 15768116), (7, 11262940), (10, 7884058), (13, 6064660), (14, 5631470), (20, 3942029), (26, 3032330), (28, 2815735), (35, 2252588), (52, 1516165), (65, 1212932), (70, 1126294), (91, 866380), (130, 606466), (140, 563147), (182, 433190), (260, 303233), (364, 216595), (455, 173276), (910, 86638), (1820, 43319)]