406945280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{22709}}^1$

素因数の和:22739

約数の個数: 80

約数和(自身を含む): 1115151840

約数和(自身を除く): 708206560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960, 17920, 22709, 45418, 90836, 113545, 158963, 181672, 227090, 317926, 363344, 454180, 635852, 726688, 794815, 908360, 1271704, 1453376, 1589630, 1816720, 2543408, 2906752, 3179260, 3633440, 5086816, 5813504, 6358520, 7266880, 10173632, 11627008, 12717040, 14533760, 20347264, 25434080, 29067520, 40694528, 50868160, 58135040, 81389056, 101736320, 203472640, 406945280]

約数ペア:

[(1, 406945280), (2, 203472640), (4, 101736320), (5, 81389056), (7, 58135040), (8, 50868160), (10, 40694528), (14, 29067520), (16, 25434080), (20, 20347264), (28, 14533760), (32, 12717040), (35, 11627008), (40, 10173632), (56, 7266880), (64, 6358520), (70, 5813504), (80, 5086816), (112, 3633440), (128, 3179260), (140, 2906752), (160, 2543408), (224, 1816720), (256, 1589630), (280, 1453376), (320, 1271704), (448, 908360), (512, 794815), (560, 726688), (640, 635852), (896, 454180), (1120, 363344), (1280, 317926), (1792, 227090), (2240, 181672), (2560, 158963), (3584, 113545), (4480, 90836), (8960, 45418), (17920, 22709)]