72420880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1637}}^1$

素因数の和:1736

約数の個数: 80

約数和(自身を含む): 194987520

約数和(自身を除く): 122566640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 1637, 2212, 2765, 3160, 3274, 4424, 5530, 6320, 6548, 8185, 8848, 11060, 11459, 13096, 16370, 22120, 22918, 26192, 32740, 44240, 45836, 57295, 65480, 91672, 114590, 129323, 130960, 183344, 229180, 258646, 458360, 517292, 646615, 905261, 916720, 1034584, 1293230, 1810522, 2069168, 2586460, 3621044, 4526305, 5172920, 7242088, 9052610, 10345840, 14484176, 18105220, 36210440, 72420880]

約数ペア:

[(1, 72420880), (2, 36210440), (4, 18105220), (5, 14484176), (7, 10345840), (8, 9052610), (10, 7242088), (14, 5172920), (16, 4526305), (20, 3621044), (28, 2586460), (35, 2069168), (40, 1810522), (56, 1293230), (70, 1034584), (79, 916720), (80, 905261), (112, 646615), (140, 517292), (158, 458360), (280, 258646), (316, 229180), (395, 183344), (553, 130960), (560, 129323), (632, 114590), (790, 91672), (1106, 65480), (1264, 57295), (1580, 45836), (1637, 44240), (2212, 32740), (2765, 26192), (3160, 22918), (3274, 22120), (4424, 16370), (5530, 13096), (6320, 11459), (6548, 11060), (8185, 8848)]