1921280

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 4905600

約数和(自身を除く): 2984320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 79, 80, 95, 128, 152, 158, 160, 190, 256, 304, 316, 320, 380, 395, 608, 632, 640, 760, 790, 1216, 1264, 1280, 1501, 1520, 1580, 2432, 2528, 3002, 3040, 3160, 4864, 5056, 6004, 6080, 6320, 7505, 10112, 12008, 12160, 12640, 15010, 20224, 24016, 24320, 25280, 30020, 48032, 50560, 60040, 96064, 101120, 120080, 192128, 240160, 384256, 480320, 960640, 1921280]

約数ペア:

[(1, 1921280), (2, 960640), (4, 480320), (5, 384256), (8, 240160), (10, 192128), (16, 120080), (19, 101120), (20, 96064), (32, 60040), (38, 50560), (40, 48032), (64, 30020), (76, 25280), (79, 24320), (80, 24016), (95, 20224), (128, 15010), (152, 12640), (158, 12160), (160, 12008), (190, 10112), (256, 7505), (304, 6320), (316, 6080), (320, 6004), (380, 5056), (395, 4864), (608, 3160), (632, 3040), (640, 3002), (760, 2528), (790, 2432), (1216, 1580), (1264, 1520), (1280, 1501)]