12553420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 29449728

約数和(自身を除く): 16896308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1327, 1892, 2365, 2654, 4730, 5308, 6635, 9460, 13270, 14597, 26540, 29194, 57061, 58388, 72985, 114122, 145970, 228244, 285305, 291940, 570610, 627671, 1141220, 1255342, 2510684, 3138355, 6276710, 12553420]

約数ペア:

[(1, 12553420), (2, 6276710), (4, 3138355), (5, 2510684), (10, 1255342), (11, 1141220), (20, 627671), (22, 570610), (43, 291940), (44, 285305), (55, 228244), (86, 145970), (110, 114122), (172, 72985), (215, 58388), (220, 57061), (430, 29194), (473, 26540), (860, 14597), (946, 13270), (1327, 9460), (1892, 6635), (2365, 5308), (2654, 4730)]