77468020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{577}}^1$

素因数の和:737

約数の個数: 72

約数和(自身を含む): 190955016

約数和(自身を除く): 113486996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 490, 548, 577, 685, 959, 980, 1154, 1370, 1918, 2308, 2740, 2885, 3836, 4039, 4795, 5770, 6713, 8078, 9590, 11540, 13426, 16156, 19180, 20195, 26852, 28273, 33565, 40390, 56546, 67130, 79049, 80780, 113092, 134260, 141365, 158098, 282730, 316196, 395245, 553343, 565460, 790490, 1106686, 1580980, 2213372, 2766715, 3873401, 5533430, 7746802, 11066860, 15493604, 19367005, 38734010, 77468020]

約数ペア:

[(1, 77468020), (2, 38734010), (4, 19367005), (5, 15493604), (7, 11066860), (10, 7746802), (14, 5533430), (20, 3873401), (28, 2766715), (35, 2213372), (49, 1580980), (70, 1106686), (98, 790490), (137, 565460), (140, 553343), (196, 395245), (245, 316196), (274, 282730), (490, 158098), (548, 141365), (577, 134260), (685, 113092), (959, 80780), (980, 79049), (1154, 67130), (1370, 56546), (1918, 40390), (2308, 33565), (2740, 28273), (2885, 26852), (3836, 20195), (4039, 19180), (4795, 16156), (5770, 13426), (6713, 11540), (8078, 9590)]