217888720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{641}}^1$

素因数の和:1268

約数の個数: 80

約数和(自身を含む): 580819968

約数和(自身を除く): 362931248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 607, 641, 1214, 1282, 2428, 2564, 3035, 3205, 4249, 4487, 4856, 5128, 6070, 6410, 8498, 8974, 9712, 10256, 12140, 12820, 16996, 17948, 21245, 22435, 24280, 25640, 33992, 35896, 42490, 44870, 48560, 51280, 67984, 71792, 84980, 89740, 169960, 179480, 339920, 358960, 389087, 778174, 1556348, 1945435, 2723609, 3112696, 3890870, 5447218, 6225392, 7781740, 10894436, 13618045, 15563480, 21788872, 27236090, 31126960, 43577744, 54472180, 108944360, 217888720]

約数ペア:

[(1, 217888720), (2, 108944360), (4, 54472180), (5, 43577744), (7, 31126960), (8, 27236090), (10, 21788872), (14, 15563480), (16, 13618045), (20, 10894436), (28, 7781740), (35, 6225392), (40, 5447218), (56, 3890870), (70, 3112696), (80, 2723609), (112, 1945435), (140, 1556348), (280, 778174), (560, 389087), (607, 358960), (641, 339920), (1214, 179480), (1282, 169960), (2428, 89740), (2564, 84980), (3035, 71792), (3205, 67984), (4249, 51280), (4487, 48560), (4856, 44870), (5128, 42490), (6070, 35896), (6410, 33992), (8498, 25640), (8974, 24280), (9712, 22435), (10256, 21245), (12140, 17948), (12820, 16996)]