2817990

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{71}}^1$

素因数の和:104

約数の個数: 120

約数和(自身を含む): 8938512

約数和(自身を除く): 6120522

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 71, 81, 90, 98, 105, 126, 135, 142, 147, 162, 189, 210, 213, 245, 270, 294, 315, 355, 378, 405, 426, 441, 490, 497, 567, 630, 639, 710, 735, 810, 882, 945, 994, 1065, 1134, 1278, 1323, 1470, 1491, 1890, 1917, 2130, 2205, 2485, 2646, 2835, 2982, 3195, 3479, 3834, 3969, 4410, 4473, 4970, 5670, 5751, 6390, 6615, 6958, 7455, 7938, 8946, 9585, 10437, 11502, 13230, 13419, 14910, 17395, 19170, 19845, 20874, 22365, 26838, 28755, 31311, 34790, 39690, 40257, 44730, 52185, 57510, 62622, 67095, 80514, 93933, 104370, 134190, 156555, 187866, 201285, 281799, 313110, 402570, 469665, 563598, 939330, 1408995, 2817990]

約数ペア:

[(1, 2817990), (2, 1408995), (3, 939330), (5, 563598), (6, 469665), (7, 402570), (9, 313110), (10, 281799), (14, 201285), (15, 187866), (18, 156555), (21, 134190), (27, 104370), (30, 93933), (35, 80514), (42, 67095), (45, 62622), (49, 57510), (54, 52185), (63, 44730), (70, 40257), (71, 39690), (81, 34790), (90, 31311), (98, 28755), (105, 26838), (126, 22365), (135, 20874), (142, 19845), (147, 19170), (162, 17395), (189, 14910), (210, 13419), (213, 13230), (245, 11502), (270, 10437), (294, 9585), (315, 8946), (355, 7938), (378, 7455), (405, 6958), (426, 6615), (441, 6390), (490, 5751), (497, 5670), (567, 4970), (630, 4473), (639, 4410), (710, 3969), (735, 3834), (810, 3479), (882, 3195), (945, 2982), (994, 2835), (1065, 2646), (1134, 2485), (1278, 2205), (1323, 2130), (1470, 1917), (1491, 1890)]