1185280640

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20809}}^1$

素因数の和:20917

約数の個数: 64

約数和(自身を含む): 2865537000

約数和(自身を除く): 1680256360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 640, 712, 890, 1424, 1780, 2848, 3560, 5696, 7120, 11392, 14240, 20809, 28480, 41618, 56960, 83236, 104045, 166472, 208090, 332944, 416180, 665888, 832360, 1331776, 1664720, 1852001, 2663552, 3329440, 3704002, 6658880, 7408004, 9260005, 13317760, 14816008, 18520010, 29632016, 37040020, 59264032, 74080040, 118528064, 148160080, 237056128, 296320160, 592640320, 1185280640]

約数ペア:

[(1, 1185280640), (2, 592640320), (4, 296320160), (5, 237056128), (8, 148160080), (10, 118528064), (16, 74080040), (20, 59264032), (32, 37040020), (40, 29632016), (64, 18520010), (80, 14816008), (89, 13317760), (128, 9260005), (160, 7408004), (178, 6658880), (320, 3704002), (356, 3329440), (445, 2663552), (640, 1852001), (712, 1664720), (890, 1331776), (1424, 832360), (1780, 665888), (2848, 416180), (3560, 332944), (5696, 208090), (7120, 166472), (11392, 104045), (14240, 83236), (20809, 56960), (28480, 41618)]