20403721912

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{133121}}^1$

素因数の和:133181

約数の個数: 96

約数和(自身を含む): 49169941920

約数和(自身を除く): 28766220008

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 49, 56, 68, 92, 98, 119, 136, 161, 184, 196, 238, 322, 391, 392, 476, 644, 782, 833, 952, 1127, 1288, 1564, 1666, 2254, 2737, 3128, 3332, 4508, 5474, 6664, 9016, 10948, 19159, 21896, 38318, 76636, 133121, 153272, 266242, 532484, 931847, 1064968, 1863694, 2263057, 3061783, 3727388, 4526114, 6123566, 6522929, 7454776, 9052228, 12247132, 13045858, 15841399, 18104456, 21432481, 24494264, 26091716, 31682798, 42864962, 52050311, 52183432, 63365596, 85729924, 104100622, 110889793, 126731192, 150027367, 171459848, 208201244, 221779586, 300054734, 364352177, 416402488, 443559172, 600109468, 728704354, 887118344, 1200218936, 1457408708, 2550465239, 2914817416, 5100930478, 10201860956, 20403721912]

約数ペア:

[(1, 20403721912), (2, 10201860956), (4, 5100930478), (7, 2914817416), (8, 2550465239), (14, 1457408708), (17, 1200218936), (23, 887118344), (28, 728704354), (34, 600109468), (46, 443559172), (49, 416402488), (56, 364352177), (68, 300054734), (92, 221779586), (98, 208201244), (119, 171459848), (136, 150027367), (161, 126731192), (184, 110889793), (196, 104100622), (238, 85729924), (322, 63365596), (391, 52183432), (392, 52050311), (476, 42864962), (644, 31682798), (782, 26091716), (833, 24494264), (952, 21432481), (1127, 18104456), (1288, 15841399), (1564, 13045858), (1666, 12247132), (2254, 9052228), (2737, 7454776), (3128, 6522929), (3332, 6123566), (4508, 4526114), (5474, 3727388), (6664, 3061783), (9016, 2263057), (10948, 1863694), (19159, 1064968), (21896, 931847), (38318, 532484), (76636, 266242), (133121, 153272)]