321140480

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2819}}^1$

素因数の和:2929

約数の個数: 72

約数和(自身を含む): 778150800

約数和(自身を除く): 457010320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 640, 712, 890, 1280, 1424, 1780, 2819, 2848, 3560, 5638, 5696, 7120, 11276, 11392, 14095, 14240, 22552, 22784, 28190, 28480, 45104, 56380, 56960, 90208, 112760, 113920, 180416, 225520, 250891, 360832, 451040, 501782, 721664, 902080, 1003564, 1254455, 1804160, 2007128, 2508910, 3608320, 4014256, 5017820, 8028512, 10035640, 16057024, 20071280, 32114048, 40142560, 64228096, 80285120, 160570240, 321140480]

約数ペア:

[(1, 321140480), (2, 160570240), (4, 80285120), (5, 64228096), (8, 40142560), (10, 32114048), (16, 20071280), (20, 16057024), (32, 10035640), (40, 8028512), (64, 5017820), (80, 4014256), (89, 3608320), (128, 2508910), (160, 2007128), (178, 1804160), (256, 1254455), (320, 1003564), (356, 902080), (445, 721664), (640, 501782), (712, 451040), (890, 360832), (1280, 250891), (1424, 225520), (1780, 180416), (2819, 113920), (2848, 112760), (3560, 90208), (5638, 56960), (5696, 56380), (7120, 45104), (11276, 28480), (11392, 28190), (14095, 22784), (14240, 22552)]