80525620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:797

約数の個数: 72

約数和(自身を含む): 198567936

約数和(自身を除く): 118042316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 127, 140, 196, 245, 254, 490, 508, 635, 647, 889, 980, 1270, 1294, 1778, 2540, 2588, 3235, 3556, 4445, 4529, 6223, 6470, 8890, 9058, 12446, 12940, 17780, 18116, 22645, 24892, 31115, 31703, 45290, 62230, 63406, 82169, 90580, 124460, 126812, 158515, 164338, 317030, 328676, 410845, 575183, 634060, 821690, 1150366, 1643380, 2300732, 2875915, 4026281, 5751830, 8052562, 11503660, 16105124, 20131405, 40262810, 80525620]

約数ペア:

[(1, 80525620), (2, 40262810), (4, 20131405), (5, 16105124), (7, 11503660), (10, 8052562), (14, 5751830), (20, 4026281), (28, 2875915), (35, 2300732), (49, 1643380), (70, 1150366), (98, 821690), (127, 634060), (140, 575183), (196, 410845), (245, 328676), (254, 317030), (490, 164338), (508, 158515), (635, 126812), (647, 124460), (889, 90580), (980, 82169), (1270, 63406), (1294, 62230), (1778, 45290), (2540, 31703), (2588, 31115), (3235, 24892), (3556, 22645), (4445, 18116), (4529, 17780), (6223, 12940), (6470, 12446), (8890, 9058)]