21778850020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2339}}^1\times {\mathrm{5231}}^1$

素因数の和:7668

約数の個数: 48

約数和(自身を含む): 46278086400

約数和(自身を除く): 24499236380

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2339, 4678, 5231, 9356, 10462, 11695, 20924, 23390, 26155, 46780, 52310, 104620, 208171, 416342, 465559, 832684, 931118, 1040855, 1862236, 2081710, 2327795, 4163420, 4655590, 9311180, 12235309, 24470618, 48941236, 61176545, 122353090, 244706180, 1088942501, 2177885002, 4355770004, 5444712505, 10889425010, 21778850020]

約数ペア:

[(1, 21778850020), (2, 10889425010), (4, 5444712505), (5, 4355770004), (10, 2177885002), (20, 1088942501), (89, 244706180), (178, 122353090), (356, 61176545), (445, 48941236), (890, 24470618), (1780, 12235309), (2339, 9311180), (4678, 4655590), (5231, 4163420), (9356, 2327795), (10462, 2081710), (11695, 1862236), (20924, 1040855), (23390, 931118), (26155, 832684), (46780, 465559), (52310, 416342), (104620, 208171)]