20199751964

素因数分解:

$2^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{541}}^1\times {\mathrm{967}}^1$

素因数の和:1723

約数の個数: 72

約数和(自身を含む): 41448873312

約数和(自身を除く): 21249121348

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 197, 394, 541, 788, 967, 1082, 1379, 1934, 2164, 2758, 3787, 3868, 5516, 6769, 7574, 9653, 13538, 15148, 19306, 26509, 27076, 38612, 47383, 53018, 94766, 106036, 106577, 189532, 190499, 213154, 380998, 426308, 523147, 746039, 761996, 1046294, 1333493, 1492078, 2092588, 2666986, 2984156, 3662029, 5222273, 5333972, 7324058, 9334451, 10444546, 14648116, 18668902, 20889092, 25634203, 37337804, 51268406, 102536812, 103059959, 206119918, 412239836, 721419713, 1442839426, 2885678852, 5049937991, 10099875982, 20199751964]

約数ペア:

[(1, 20199751964), (2, 10099875982), (4, 5049937991), (7, 2885678852), (14, 1442839426), (28, 721419713), (49, 412239836), (98, 206119918), (196, 103059959), (197, 102536812), (394, 51268406), (541, 37337804), (788, 25634203), (967, 20889092), (1082, 18668902), (1379, 14648116), (1934, 10444546), (2164, 9334451), (2758, 7324058), (3787, 5333972), (3868, 5222273), (5516, 3662029), (6769, 2984156), (7574, 2666986), (9653, 2092588), (13538, 1492078), (15148, 1333493), (19306, 1046294), (26509, 761996), (27076, 746039), (38612, 523147), (47383, 426308), (53018, 380998), (94766, 213154), (106036, 190499), (106577, 189532)]