16805120

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:731

約数の個数: 72

約数和(自身を含む): 42433440

約数和(自身を除く): 25628320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 691, 760, 1216, 1280, 1382, 1520, 2432, 2764, 3040, 3455, 4864, 5528, 6080, 6910, 11056, 12160, 13129, 13820, 22112, 24320, 26258, 27640, 44224, 52516, 55280, 65645, 88448, 105032, 110560, 131290, 176896, 210064, 221120, 262580, 420128, 442240, 525160, 840256, 884480, 1050320, 1680512, 2100640, 3361024, 4201280, 8402560, 16805120]

約数ペア:

[(1, 16805120), (2, 8402560), (4, 4201280), (5, 3361024), (8, 2100640), (10, 1680512), (16, 1050320), (19, 884480), (20, 840256), (32, 525160), (38, 442240), (40, 420128), (64, 262580), (76, 221120), (80, 210064), (95, 176896), (128, 131290), (152, 110560), (160, 105032), (190, 88448), (256, 65645), (304, 55280), (320, 52516), (380, 44224), (608, 27640), (640, 26258), (691, 24320), (760, 22112), (1216, 13820), (1280, 13129), (1382, 12160), (1520, 11056), (2432, 6910), (2764, 6080), (3040, 5528), (3455, 4864)]