20936440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3251}}^1$

素因数の和:3292

約数の個数: 64

約数和(自身を含む): 56194560

約数和(自身を除く): 35258120

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, 3251, 6440, 6502, 13004, 16255, 22757, 26008, 32510, 45514, 65020, 74773, 91028, 113785, 130040, 149546, 182056, 227570, 299092, 373865, 455140, 523411, 598184, 747730, 910280, 1046822, 1495460, 2093644, 2617055, 2990920, 4187288, 5234110, 10468220, 20936440]

約数ペア:

[(1, 20936440), (2, 10468220), (4, 5234110), (5, 4187288), (7, 2990920), (8, 2617055), (10, 2093644), (14, 1495460), (20, 1046822), (23, 910280), (28, 747730), (35, 598184), (40, 523411), (46, 455140), (56, 373865), (70, 299092), (92, 227570), (115, 182056), (140, 149546), (161, 130040), (184, 113785), (230, 91028), (280, 74773), (322, 65020), (460, 45514), (644, 32510), (805, 26008), (920, 22757), (1288, 16255), (1610, 13004), (3220, 6502), (3251, 6440)]