349337560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:581

約数の個数: 128

約数和(自身を含む): 931694400

約数和(自身を除く): 582356840

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 157, 220, 260, 286, 314, 389, 440, 520, 572, 628, 715, 778, 785, 1144, 1256, 1430, 1556, 1570, 1727, 1945, 2041, 2860, 3112, 3140, 3454, 3890, 4082, 4279, 5057, 5720, 6280, 6908, 7780, 8164, 8558, 8635, 10114, 10205, 13816, 15560, 16328, 17116, 17270, 20228, 20410, 21395, 22451, 25285, 34232, 34540, 40456, 40820, 42790, 44902, 50570, 55627, 61073, 69080, 81640, 85580, 89804, 101140, 111254, 112255, 122146, 171160, 179608, 202280, 222508, 224510, 244292, 278135, 305365, 445016, 449020, 488584, 556270, 610730, 671803, 793949, 898040, 1112540, 1221460, 1343606, 1587898, 2225080, 2442920, 2687212, 3175796, 3359015, 3969745, 5374424, 6351592, 6718030, 7939490, 8733439, 13436060, 15878980, 17466878, 26872120, 31757960, 34933756, 43667195, 69867512, 87334390, 174668780, 349337560]

約数ペア:

[(1, 349337560), (2, 174668780), (4, 87334390), (5, 69867512), (8, 43667195), (10, 34933756), (11, 31757960), (13, 26872120), (20, 17466878), (22, 15878980), (26, 13436060), (40, 8733439), (44, 7939490), (52, 6718030), (55, 6351592), (65, 5374424), (88, 3969745), (104, 3359015), (110, 3175796), (130, 2687212), (143, 2442920), (157, 2225080), (220, 1587898), (260, 1343606), (286, 1221460), (314, 1112540), (389, 898040), (440, 793949), (520, 671803), (572, 610730), (628, 556270), (715, 488584), (778, 449020), (785, 445016), (1144, 305365), (1256, 278135), (1430, 244292), (1556, 224510), (1570, 222508), (1727, 202280), (1945, 179608), (2041, 171160), (2860, 122146), (3112, 112255), (3140, 111254), (3454, 101140), (3890, 89804), (4082, 85580), (4279, 81640), (5057, 69080), (5720, 61073), (6280, 55627), (6908, 50570), (7780, 44902), (8164, 42790), (8558, 40820), (8635, 40456), (10114, 34540), (10205, 34232), (13816, 25285), (15560, 22451), (16328, 21395), (17116, 20410), (17270, 20228)]