400206720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{208441}}^1$

素因数の和:208463

約数の個数: 64

約数和(自身を含む): 1275665040

約数和(自身を除く): 875458320

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, 320, 384, 480, 640, 960, 1920, 208441, 416882, 625323, 833764, 1042205, 1250646, 1667528, 2084410, 2501292, 3126615, 3335056, 4168820, 5002584, 6253230, 6670112, 8337640, 10005168, 12506460, 13340224, 16675280, 20010336, 25012920, 26680448, 33350560, 40020672, 50025840, 66701120, 80041344, 100051680, 133402240, 200103360, 400206720]

約数ペア:

[(1, 400206720), (2, 200103360), (3, 133402240), (4, 100051680), (5, 80041344), (6, 66701120), (8, 50025840), (10, 40020672), (12, 33350560), (15, 26680448), (16, 25012920), (20, 20010336), (24, 16675280), (30, 13340224), (32, 12506460), (40, 10005168), (48, 8337640), (60, 6670112), (64, 6253230), (80, 5002584), (96, 4168820), (120, 3335056), (128, 3126615), (160, 2501292), (192, 2084410), (240, 1667528), (320, 1250646), (384, 1042205), (480, 833764), (640, 625323), (960, 416882), (1920, 208441)]