9902900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 108

約数和(自身を含む): 26123328

約数和(自身を除く): 16220428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 47, 49, 50, 70, 86, 94, 98, 100, 140, 172, 175, 188, 196, 215, 235, 245, 301, 329, 350, 430, 470, 490, 602, 658, 700, 860, 940, 980, 1075, 1175, 1204, 1225, 1316, 1505, 1645, 2021, 2107, 2150, 2303, 2350, 2450, 3010, 3290, 4042, 4214, 4300, 4606, 4700, 4900, 6020, 6580, 7525, 8084, 8225, 8428, 9212, 10105, 10535, 11515, 14147, 15050, 16450, 20210, 21070, 23030, 28294, 30100, 32900, 40420, 42140, 46060, 50525, 52675, 56588, 57575, 70735, 99029, 101050, 105350, 115150, 141470, 198058, 202100, 210700, 230300, 282940, 353675, 396116, 495145, 707350, 990290, 1414700, 1980580, 2475725, 4951450, 9902900]

約数ペア:

[(1, 9902900), (2, 4951450), (4, 2475725), (5, 1980580), (7, 1414700), (10, 990290), (14, 707350), (20, 495145), (25, 396116), (28, 353675), (35, 282940), (43, 230300), (47, 210700), (49, 202100), (50, 198058), (70, 141470), (86, 115150), (94, 105350), (98, 101050), (100, 99029), (140, 70735), (172, 57575), (175, 56588), (188, 52675), (196, 50525), (215, 46060), (235, 42140), (245, 40420), (301, 32900), (329, 30100), (350, 28294), (430, 23030), (470, 21070), (490, 20210), (602, 16450), (658, 15050), (700, 14147), (860, 11515), (940, 10535), (980, 10105), (1075, 9212), (1175, 8428), (1204, 8225), (1225, 8084), (1316, 7525), (1505, 6580), (1645, 6020), (2021, 4900), (2107, 4700), (2150, 4606), (2303, 4300), (2350, 4214), (2450, 4042), (3010, 3290)]