20983200

素因数分解:

$2^5\times 3^1\times 5^2\times 7^1\times {\mathrm{1249}}^1$

素因数の和:1279

約数の個数: 144

約数和(自身を含む): 78120000

約数和(自身を除く): 57136800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 200, 210, 224, 240, 280, 300, 336, 350, 400, 420, 480, 525, 560, 600, 672, 700, 800, 840, 1050, 1120, 1200, 1249, 1400, 1680, 2100, 2400, 2498, 2800, 3360, 3747, 4200, 4996, 5600, 6245, 7494, 8400, 8743, 9992, 12490, 14988, 16800, 17486, 18735, 19984, 24980, 26229, 29976, 31225, 34972, 37470, 39968, 43715, 49960, 52458, 59952, 62450, 69944, 74940, 87430, 93675, 99920, 104916, 119904, 124900, 131145, 139888, 149880, 174860, 187350, 199840, 209832, 218575, 249800, 262290, 279776, 299760, 349720, 374700, 419664, 437150, 499600, 524580, 599520, 655725, 699440, 749400, 839328, 874300, 999200, 1049160, 1311450, 1398880, 1498800, 1748600, 2098320, 2622900, 2997600, 3497200, 4196640, 5245800, 6994400, 10491600, 20983200]

約数ペア:

[(1, 20983200), (2, 10491600), (3, 6994400), (4, 5245800), (5, 4196640), (6, 3497200), (7, 2997600), (8, 2622900), (10, 2098320), (12, 1748600), (14, 1498800), (15, 1398880), (16, 1311450), (20, 1049160), (21, 999200), (24, 874300), (25, 839328), (28, 749400), (30, 699440), (32, 655725), (35, 599520), (40, 524580), (42, 499600), (48, 437150), (50, 419664), (56, 374700), (60, 349720), (70, 299760), (75, 279776), (80, 262290), (84, 249800), (96, 218575), (100, 209832), (105, 199840), (112, 187350), (120, 174860), (140, 149880), (150, 139888), (160, 131145), (168, 124900), (175, 119904), (200, 104916), (210, 99920), (224, 93675), (240, 87430), (280, 74940), (300, 69944), (336, 62450), (350, 59952), (400, 52458), (420, 49960), (480, 43715), (525, 39968), (560, 37470), (600, 34972), (672, 31225), (700, 29976), (800, 26229), (840, 24980), (1050, 19984), (1120, 18735), (1200, 17486), (1249, 16800), (1400, 14988), (1680, 12490), (2100, 9992), (2400, 8743), (2498, 8400), (2800, 7494), (3360, 6245), (3747, 5600), (4200, 4996)]