421788978

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 1051142400

約数和(自身を除く): 629353422

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 86, 89, 117, 129, 157, 178, 234, 258, 267, 314, 351, 387, 471, 534, 559, 702, 774, 801, 942, 1118, 1157, 1161, 1413, 1602, 1677, 2041, 2314, 2322, 2403, 2826, 3354, 3471, 3827, 4082, 4239, 4806, 5031, 6123, 6751, 6942, 7654, 8478, 10062, 10413, 11481, 12246, 13502, 13973, 15093, 18369, 20253, 20826, 22962, 27946, 30186, 31239, 34443, 36738, 40506, 41919, 49751, 55107, 60759, 62478, 68886, 83838, 87763, 99502, 103329, 110214, 121518, 125757, 149253, 175526, 181649, 182277, 206658, 251514, 263289, 298506, 363298, 364554, 377271, 447759, 526578, 544947, 600839, 754542, 789867, 895518, 1089894, 1201678, 1343277, 1579734, 1634841, 1802517, 2369601, 2686554, 3269682, 3605034, 4739202, 4904523, 5407551, 7810907, 9809046, 10815102, 15621814, 16222653, 23432721, 32445306, 46865442, 70298163, 140596326, 210894489, 421788978]

約数ペア:

[(1, 421788978), (2, 210894489), (3, 140596326), (6, 70298163), (9, 46865442), (13, 32445306), (18, 23432721), (26, 16222653), (27, 15621814), (39, 10815102), (43, 9809046), (54, 7810907), (78, 5407551), (86, 4904523), (89, 4739202), (117, 3605034), (129, 3269682), (157, 2686554), (178, 2369601), (234, 1802517), (258, 1634841), (267, 1579734), (314, 1343277), (351, 1201678), (387, 1089894), (471, 895518), (534, 789867), (559, 754542), (702, 600839), (774, 544947), (801, 526578), (942, 447759), (1118, 377271), (1157, 364554), (1161, 363298), (1413, 298506), (1602, 263289), (1677, 251514), (2041, 206658), (2314, 182277), (2322, 181649), (2403, 175526), (2826, 149253), (3354, 125757), (3471, 121518), (3827, 110214), (4082, 103329), (4239, 99502), (4806, 87763), (5031, 83838), (6123, 68886), (6751, 62478), (6942, 60759), (7654, 55107), (8478, 49751), (10062, 41919), (10413, 40506), (11481, 36738), (12246, 34443), (13502, 31239), (13973, 30186), (15093, 27946), (18369, 22962), (20253, 20826)]