242944640

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19979}}^1$

素因数の和:20017

約数の個数: 64

約数和(自身を含む): 611388000

約数和(自身を除く): 368443360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 12160, 19979, 39958, 79916, 99895, 159832, 199790, 319664, 379601, 399580, 639328, 759202, 799160, 1278656, 1518404, 1598320, 1898005, 2557312, 3036808, 3196640, 3796010, 6073616, 6393280, 7592020, 12147232, 12786560, 15184040, 24294464, 30368080, 48588928, 60736160, 121472320, 242944640]

約数ペア:

[(1, 242944640), (2, 121472320), (4, 60736160), (5, 48588928), (8, 30368080), (10, 24294464), (16, 15184040), (19, 12786560), (20, 12147232), (32, 7592020), (38, 6393280), (40, 6073616), (64, 3796010), (76, 3196640), (80, 3036808), (95, 2557312), (128, 1898005), (152, 1598320), (160, 1518404), (190, 1278656), (304, 799160), (320, 759202), (380, 639328), (608, 399580), (640, 379601), (760, 319664), (1216, 199790), (1520, 159832), (2432, 99895), (3040, 79916), (6080, 39958), (12160, 19979)]