1978629800

素因数分解:

$2^3\times 5^2\times 7^3\times {\mathrm{28843}}^1$

素因数の和:28880

約数の個数: 96

約数和(自身を含む): 5364984000

約数和(自身を除く): 3386354200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 343, 350, 392, 490, 686, 700, 980, 1225, 1372, 1400, 1715, 1960, 2450, 2744, 3430, 4900, 6860, 8575, 9800, 13720, 17150, 28843, 34300, 57686, 68600, 115372, 144215, 201901, 230744, 288430, 403802, 576860, 721075, 807604, 1009505, 1153720, 1413307, 1442150, 1615208, 2019010, 2826614, 2884300, 4038020, 5047525, 5653228, 5768600, 7066535, 8076040, 9893149, 10095050, 11306456, 14133070, 19786298, 20190100, 28266140, 35332675, 39572596, 40380200, 49465745, 56532280, 70665350, 79145192, 98931490, 141330700, 197862980, 247328725, 282661400, 395725960, 494657450, 989314900, 1978629800]

約数ペア:

[(1, 1978629800), (2, 989314900), (4, 494657450), (5, 395725960), (7, 282661400), (8, 247328725), (10, 197862980), (14, 141330700), (20, 98931490), (25, 79145192), (28, 70665350), (35, 56532280), (40, 49465745), (49, 40380200), (50, 39572596), (56, 35332675), (70, 28266140), (98, 20190100), (100, 19786298), (140, 14133070), (175, 11306456), (196, 10095050), (200, 9893149), (245, 8076040), (280, 7066535), (343, 5768600), (350, 5653228), (392, 5047525), (490, 4038020), (686, 2884300), (700, 2826614), (980, 2019010), (1225, 1615208), (1372, 1442150), (1400, 1413307), (1715, 1153720), (1960, 1009505), (2450, 807604), (2744, 721075), (3430, 576860), (4900, 403802), (6860, 288430), (8575, 230744), (9800, 201901), (13720, 144215), (17150, 115372), (28843, 68600), (34300, 57686)]