209213488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 459970560

約数和(自身を除く): 250757072

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 79, 82, 88, 158, 164, 176, 316, 328, 367, 451, 632, 656, 734, 869, 902, 1264, 1468, 1738, 1804, 2936, 3239, 3476, 3608, 4037, 5872, 6478, 6952, 7216, 8074, 12956, 13904, 15047, 16148, 25912, 28993, 30094, 32296, 35629, 51824, 57986, 60188, 64592, 71258, 115972, 120376, 142516, 165517, 231944, 240752, 285032, 318923, 331034, 463888, 570064, 637846, 662068, 1188713, 1275692, 1324136, 2377426, 2551384, 2648272, 4754852, 5102768, 9509704, 13075843, 19019408, 26151686, 52303372, 104606744, 209213488]

約数ペア:

[(1, 209213488), (2, 104606744), (4, 52303372), (8, 26151686), (11, 19019408), (16, 13075843), (22, 9509704), (41, 5102768), (44, 4754852), (79, 2648272), (82, 2551384), (88, 2377426), (158, 1324136), (164, 1275692), (176, 1188713), (316, 662068), (328, 637846), (367, 570064), (451, 463888), (632, 331034), (656, 318923), (734, 285032), (869, 240752), (902, 231944), (1264, 165517), (1468, 142516), (1738, 120376), (1804, 115972), (2936, 71258), (3239, 64592), (3476, 60188), (3608, 57986), (4037, 51824), (5872, 35629), (6478, 32296), (6952, 30094), (7216, 28993), (8074, 25912), (12956, 16148), (13904, 15047)]