320438880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{222527}}^1$

素因数の和:222548

約数の個数: 72

約数和(自身を含む): 1093502592

約数和(自身を除く): 773063712

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 222527, 445054, 667581, 890108, 1112635, 1335162, 1780216, 2002743, 2225270, 2670324, 3337905, 3560432, 4005486, 4450540, 5340648, 6675810, 7120864, 8010972, 8901080, 10013715, 10681296, 13351620, 16021944, 17802160, 20027430, 21362592, 26703240, 32043888, 35604320, 40054860, 53406480, 64087776, 80109720, 106812960, 160219440, 320438880]

約数ペア:

[(1, 320438880), (2, 160219440), (3, 106812960), (4, 80109720), (5, 64087776), (6, 53406480), (8, 40054860), (9, 35604320), (10, 32043888), (12, 26703240), (15, 21362592), (16, 20027430), (18, 17802160), (20, 16021944), (24, 13351620), (30, 10681296), (32, 10013715), (36, 8901080), (40, 8010972), (45, 7120864), (48, 6675810), (60, 5340648), (72, 4450540), (80, 4005486), (90, 3560432), (96, 3337905), (120, 2670324), (144, 2225270), (160, 2002743), (180, 1780216), (240, 1335162), (288, 1112635), (360, 890108), (480, 667581), (720, 445054), (1440, 222527)]