2905418740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{63079}}^1$

素因数の和:63149

約数の個数: 72

約数和(自身を含む): 7248648960

約数和(自身を除く): 4343230220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 940, 980, 1316, 1645, 2303, 3290, 4606, 6580, 9212, 11515, 23030, 46060, 63079, 126158, 252316, 315395, 441553, 630790, 883106, 1261580, 1766212, 2207765, 2964713, 3090871, 4415530, 5929426, 6181742, 8831060, 11858852, 12363484, 14823565, 15454355, 20752991, 29647130, 30908710, 41505982, 59294260, 61817420, 83011964, 103764955, 145270937, 207529910, 290541874, 415059820, 581083748, 726354685, 1452709370, 2905418740]

約数ペア:

[(1, 2905418740), (2, 1452709370), (4, 726354685), (5, 581083748), (7, 415059820), (10, 290541874), (14, 207529910), (20, 145270937), (28, 103764955), (35, 83011964), (47, 61817420), (49, 59294260), (70, 41505982), (94, 30908710), (98, 29647130), (140, 20752991), (188, 15454355), (196, 14823565), (235, 12363484), (245, 11858852), (329, 8831060), (470, 6181742), (490, 5929426), (658, 4415530), (940, 3090871), (980, 2964713), (1316, 2207765), (1645, 1766212), (2303, 1261580), (3290, 883106), (4606, 630790), (6580, 441553), (9212, 315395), (11515, 252316), (23030, 126158), (46060, 63079)]