28455040

素因数分解:

$2^7\times 5^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 68684760

約数和(自身を除く): 40229720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 173, 257, 320, 346, 514, 640, 692, 865, 1028, 1285, 1384, 1730, 2056, 2570, 2768, 3460, 4112, 5140, 5536, 6920, 8224, 10280, 11072, 13840, 16448, 20560, 22144, 27680, 32896, 41120, 44461, 55360, 82240, 88922, 110720, 164480, 177844, 222305, 355688, 444610, 711376, 889220, 1422752, 1778440, 2845504, 3556880, 5691008, 7113760, 14227520, 28455040]

約数ペア:

[(1, 28455040), (2, 14227520), (4, 7113760), (5, 5691008), (8, 3556880), (10, 2845504), (16, 1778440), (20, 1422752), (32, 889220), (40, 711376), (64, 444610), (80, 355688), (128, 222305), (160, 177844), (173, 164480), (257, 110720), (320, 88922), (346, 82240), (514, 55360), (640, 44461), (692, 41120), (865, 32896), (1028, 27680), (1285, 22144), (1384, 20560), (1730, 16448), (2056, 13840), (2570, 11072), (2768, 10280), (3460, 8224), (4112, 6920), (5140, 5536)]