27801970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 61710336

約数和(自身を除く): 33908366

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 61, 70, 85, 119, 122, 170, 238, 305, 383, 427, 595, 610, 766, 854, 1037, 1190, 1915, 2074, 2135, 2681, 3830, 4270, 5185, 5362, 6511, 7259, 10370, 13022, 13405, 14518, 23363, 26810, 32555, 36295, 45577, 46726, 65110, 72590, 91154, 116815, 163541, 227885, 233630, 327082, 397171, 455770, 794342, 817705, 1635410, 1985855, 2780197, 3971710, 5560394, 13900985, 27801970]

約数ペア:

[(1, 27801970), (2, 13900985), (5, 5560394), (7, 3971710), (10, 2780197), (14, 1985855), (17, 1635410), (34, 817705), (35, 794342), (61, 455770), (70, 397171), (85, 327082), (119, 233630), (122, 227885), (170, 163541), (238, 116815), (305, 91154), (383, 72590), (427, 65110), (595, 46726), (610, 45577), (766, 36295), (854, 32555), (1037, 26810), (1190, 23363), (1915, 14518), (2074, 13405), (2135, 13022), (2681, 10370), (3830, 7259), (4270, 6511), (5185, 5362)]