78909320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12253}}^1$

素因数の和:12294

約数の個数: 64

約数和(自身を含む): 211749120

約数和(自身を除く): 132839800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 12253, 24506, 49012, 61265, 85771, 98024, 122530, 171542, 245060, 281819, 343084, 428855, 490120, 563638, 686168, 857710, 1127276, 1409095, 1715420, 1972733, 2254552, 2818190, 3430840, 3945466, 5636380, 7890932, 9863665, 11272760, 15781864, 19727330, 39454660, 78909320]

約数ペア:

[(1, 78909320), (2, 39454660), (4, 19727330), (5, 15781864), (7, 11272760), (8, 9863665), (10, 7890932), (14, 5636380), (20, 3945466), (23, 3430840), (28, 2818190), (35, 2254552), (40, 1972733), (46, 1715420), (56, 1409095), (70, 1127276), (92, 857710), (115, 686168), (140, 563638), (161, 490120), (184, 428855), (230, 343084), (280, 281819), (322, 245060), (460, 171542), (644, 122530), (805, 98024), (920, 85771), (1288, 61265), (1610, 49012), (3220, 24506), (6440, 12253)]