80336640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{20921}}^1$

素因数の和:20945

約数の個数: 72

約数和(自身を含む): 256587408

約数和(自身を除く): 176250768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 20921, 41842, 62763, 83684, 104605, 125526, 167368, 209210, 251052, 313815, 334736, 418420, 502104, 627630, 669472, 836840, 1004208, 1255260, 1338944, 1673680, 2008416, 2510520, 2677888, 3347360, 4016832, 5021040, 5355776, 6694720, 8033664, 10042080, 13389440, 16067328, 20084160, 26778880, 40168320, 80336640]

約数ペア:

[(1, 80336640), (2, 40168320), (3, 26778880), (4, 20084160), (5, 16067328), (6, 13389440), (8, 10042080), (10, 8033664), (12, 6694720), (15, 5355776), (16, 5021040), (20, 4016832), (24, 3347360), (30, 2677888), (32, 2510520), (40, 2008416), (48, 1673680), (60, 1338944), (64, 1255260), (80, 1004208), (96, 836840), (120, 669472), (128, 627630), (160, 502104), (192, 418420), (240, 334736), (256, 313815), (320, 251052), (384, 209210), (480, 167368), (640, 125526), (768, 104605), (960, 83684), (1280, 62763), (1920, 41842), (3840, 20921)]