213301900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:560

約数の個数: 108

約数和(自身を含む): 545027616

約数和(自身を除く): 331725716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 101, 140, 175, 196, 202, 245, 350, 404, 431, 490, 505, 700, 707, 862, 980, 1010, 1225, 1414, 1724, 2020, 2155, 2450, 2525, 2828, 3017, 3535, 4310, 4900, 4949, 5050, 6034, 7070, 8620, 9898, 10100, 10775, 12068, 14140, 15085, 17675, 19796, 21119, 21550, 24745, 30170, 35350, 42238, 43100, 43531, 49490, 60340, 70700, 75425, 84476, 87062, 98980, 105595, 123725, 150850, 174124, 211190, 217655, 247450, 301700, 304717, 422380, 435310, 494900, 527975, 609434, 870620, 1055950, 1088275, 1218868, 1523585, 2111900, 2133019, 2176550, 3047170, 4266038, 4353100, 6094340, 7617925, 8532076, 10665095, 15235850, 21330190, 30471700, 42660380, 53325475, 106650950, 213301900]

約数ペア:

[(1, 213301900), (2, 106650950), (4, 53325475), (5, 42660380), (7, 30471700), (10, 21330190), (14, 15235850), (20, 10665095), (25, 8532076), (28, 7617925), (35, 6094340), (49, 4353100), (50, 4266038), (70, 3047170), (98, 2176550), (100, 2133019), (101, 2111900), (140, 1523585), (175, 1218868), (196, 1088275), (202, 1055950), (245, 870620), (350, 609434), (404, 527975), (431, 494900), (490, 435310), (505, 422380), (700, 304717), (707, 301700), (862, 247450), (980, 217655), (1010, 211190), (1225, 174124), (1414, 150850), (1724, 123725), (2020, 105595), (2155, 98980), (2450, 87062), (2525, 84476), (2828, 75425), (3017, 70700), (3535, 60340), (4310, 49490), (4900, 43531), (4949, 43100), (5050, 42238), (6034, 35350), (7070, 30170), (8620, 24745), (9898, 21550), (10100, 21119), (10775, 19796), (12068, 17675), (14140, 15085)]