20888910

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:558

約数の個数: 96

約数和(自身を含む): 63078912

約数和(自身を除く): 42190002

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 71, 90, 105, 126, 142, 210, 213, 315, 355, 426, 467, 497, 630, 639, 710, 934, 994, 1065, 1278, 1401, 1491, 2130, 2335, 2485, 2802, 2982, 3195, 3269, 4203, 4473, 4670, 4970, 6390, 6538, 7005, 7455, 8406, 8946, 9807, 14010, 14910, 16345, 19614, 21015, 22365, 29421, 32690, 33157, 42030, 44730, 49035, 58842, 66314, 98070, 99471, 147105, 165785, 198942, 232099, 294210, 298413, 331570, 464198, 497355, 596826, 696297, 994710, 1160495, 1392594, 1492065, 2088891, 2320990, 2984130, 3481485, 4177782, 6962970, 10444455, 20888910]

約数ペア:

[(1, 20888910), (2, 10444455), (3, 6962970), (5, 4177782), (6, 3481485), (7, 2984130), (9, 2320990), (10, 2088891), (14, 1492065), (15, 1392594), (18, 1160495), (21, 994710), (30, 696297), (35, 596826), (42, 497355), (45, 464198), (63, 331570), (70, 298413), (71, 294210), (90, 232099), (105, 198942), (126, 165785), (142, 147105), (210, 99471), (213, 98070), (315, 66314), (355, 58842), (426, 49035), (467, 44730), (497, 42030), (630, 33157), (639, 32690), (710, 29421), (934, 22365), (994, 21015), (1065, 19614), (1278, 16345), (1401, 14910), (1491, 14010), (2130, 9807), (2335, 8946), (2485, 8406), (2802, 7455), (2982, 7005), (3195, 6538), (3269, 6390), (4203, 4970), (4473, 4670)]