80420480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{619}}^1$

素因数の和:674

約数の個数: 128

約数和(自身を含む): 227664000

約数和(自身を除く): 147243520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 280, 290, 320, 406, 448, 464, 560, 580, 619, 640, 812, 896, 928, 1015, 1120, 1160, 1238, 1624, 1856, 2030, 2240, 2320, 2476, 3095, 3248, 3712, 4060, 4333, 4480, 4640, 4952, 6190, 6496, 8120, 8666, 9280, 9904, 12380, 12992, 16240, 17332, 17951, 18560, 19808, 21665, 24760, 25984, 32480, 34664, 35902, 39616, 43330, 49520, 64960, 69328, 71804, 79232, 86660, 89755, 99040, 125657, 129920, 138656, 143608, 173320, 179510, 198080, 251314, 277312, 287216, 346640, 359020, 396160, 502628, 554624, 574432, 628285, 693280, 718040, 1005256, 1148864, 1256570, 1386560, 1436080, 2010512, 2297728, 2513140, 2773120, 2872160, 4021024, 5026280, 5744320, 8042048, 10052560, 11488640, 16084096, 20105120, 40210240, 80420480]

約数ペア:

[(1, 80420480), (2, 40210240), (4, 20105120), (5, 16084096), (7, 11488640), (8, 10052560), (10, 8042048), (14, 5744320), (16, 5026280), (20, 4021024), (28, 2872160), (29, 2773120), (32, 2513140), (35, 2297728), (40, 2010512), (56, 1436080), (58, 1386560), (64, 1256570), (70, 1148864), (80, 1005256), (112, 718040), (116, 693280), (128, 628285), (140, 574432), (145, 554624), (160, 502628), (203, 396160), (224, 359020), (232, 346640), (280, 287216), (290, 277312), (320, 251314), (406, 198080), (448, 179510), (464, 173320), (560, 143608), (580, 138656), (619, 129920), (640, 125657), (812, 99040), (896, 89755), (928, 86660), (1015, 79232), (1120, 71804), (1160, 69328), (1238, 64960), (1624, 49520), (1856, 43330), (2030, 39616), (2240, 35902), (2320, 34664), (2476, 32480), (3095, 25984), (3248, 24760), (3712, 21665), (4060, 19808), (4333, 18560), (4480, 17951), (4640, 17332), (4952, 16240), (6190, 12992), (6496, 12380), (8120, 9904), (8666, 9280)]