211963960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7691}}^1$

素因数の和:7768

約数の個数: 64

約数和(自身を含む): 523363680

約数和(自身を除く): 311399720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 2120, 2756, 3445, 5512, 6890, 7691, 13780, 15382, 27560, 30764, 38455, 61528, 76910, 99983, 153820, 199966, 307640, 399932, 407623, 499915, 799864, 815246, 999830, 1630492, 1999660, 2038115, 3260984, 3999320, 4076230, 5299099, 8152460, 10598198, 16304920, 21196396, 26495495, 42392792, 52990990, 105981980, 211963960]

約数ペア:

[(1, 211963960), (2, 105981980), (4, 52990990), (5, 42392792), (8, 26495495), (10, 21196396), (13, 16304920), (20, 10598198), (26, 8152460), (40, 5299099), (52, 4076230), (53, 3999320), (65, 3260984), (104, 2038115), (106, 1999660), (130, 1630492), (212, 999830), (260, 815246), (265, 799864), (424, 499915), (520, 407623), (530, 399932), (689, 307640), (1060, 199966), (1378, 153820), (2120, 99983), (2756, 76910), (3445, 61528), (5512, 38455), (6890, 30764), (7691, 27560), (13780, 15382)]