1818880

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{29}}^1$

素因数の和:64

約数の個数: 108

約数和(自身を含む): 5242860

約数和(自身を除く): 3423980

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 64, 70, 80, 98, 112, 116, 128, 140, 145, 160, 196, 203, 224, 232, 245, 256, 280, 290, 320, 392, 406, 448, 464, 490, 560, 580, 640, 784, 812, 896, 928, 980, 1015, 1120, 1160, 1280, 1421, 1568, 1624, 1792, 1856, 1960, 2030, 2240, 2320, 2842, 3136, 3248, 3712, 3920, 4060, 4480, 4640, 5684, 6272, 6496, 7105, 7424, 7840, 8120, 8960, 9280, 11368, 12544, 12992, 14210, 15680, 16240, 18560, 22736, 25984, 28420, 31360, 32480, 37120, 45472, 51968, 56840, 62720, 64960, 90944, 113680, 129920, 181888, 227360, 259840, 363776, 454720, 909440, 1818880]

約数ペア:

[(1, 1818880), (2, 909440), (4, 454720), (5, 363776), (7, 259840), (8, 227360), (10, 181888), (14, 129920), (16, 113680), (20, 90944), (28, 64960), (29, 62720), (32, 56840), (35, 51968), (40, 45472), (49, 37120), (56, 32480), (58, 31360), (64, 28420), (70, 25984), (80, 22736), (98, 18560), (112, 16240), (116, 15680), (128, 14210), (140, 12992), (145, 12544), (160, 11368), (196, 9280), (203, 8960), (224, 8120), (232, 7840), (245, 7424), (256, 7105), (280, 6496), (290, 6272), (320, 5684), (392, 4640), (406, 4480), (448, 4060), (464, 3920), (490, 3712), (560, 3248), (580, 3136), (640, 2842), (784, 2320), (812, 2240), (896, 2030), (928, 1960), (980, 1856), (1015, 1792), (1120, 1624), (1160, 1568), (1280, 1421)]